Latest version of this web site converted to DokuWiki format.

Conference presentations are in normal letters, refereed articles are in bold . Only most relevant conference contributions are included here.
Development of passive wireless acoustic transducers acting as sensors, with the SENSeOR company and the Time and Frequency department of the FEMTO-ST institute (Besançon, France), focuses on bulk- and surface-acoustic transducers and the associated RADAR-like electronics systems for the development of passive sensors interrogated through a wireless radiofrequency link. Previous activities (performed in IMEC, Leuven, Belgium, continued at FEMTO-ST) were concerned with the combination of Love mode surface acoustic wave sensors (SAW) [slides in French: presented 11/2006 at ENSL, France] (video of the presentation in French) and surface plasmon resonance (SPR) as well as quartz crystal microbalance (QCM) and atomic force microscopy (AFM) combination. Older work performed during my PhD includes noise analysis in a chaotic electronic circuit (Chua's circuit) and manipulation of nano/micrometric objects with AFM with force feedback (inclusion of an AFM in an SEM). I obtained my habilitation (HDR) in 2010 (manuscript and slides). I am currently an assistant professor employed by the Université de Franche-Comté in Besançon, France, located at the Time and Frequency department of FEMTO-ST for my research activities.


Le circuit electronique incluant le module GPS d'enregistrement des trames (256 heures d'enregistrement en autonomie memoire, 20 heure d'autonomie en energie sur 4 piles NiMH rechargeables) est disponible aupres de l'auteur pour 85 euros + frais d'envoi : me contacter (friedtj _at_ free _point_ fr) pour plus d'informations. Présentation faite à Rennes (Association Gulliver) le 16/10/2008 sur ce sujet.

Enseignement

  • Ressources : compilation d'une toolchain pour microcontroleurs ARM (STM32) baremetal, configuration buildroot et environnement de développement pour installer Linux sur processeur ARM (A13), accès matériel depuis l'espace utilisateur, introduction aux modules noyau puis gestion des interruptions sous Linux, application à la plateforme Olinuxino A13 micro
  • Université :
    1. Master 2 EEA (2nd semestre), 2 cours sur SOPC par Gwenhael Goavec : énoncé et les archives du premier et second TP.
    2. Master 2 EEA (1er semestre), 7 cours sur systèmes embarqués :
      1. séance 1 et le texte TP1/2 (FreeRTOS/STM32) + archive,
      2. séance 2 et TP2+3 (FIR/STM32),
      3. séance 4 et TP4 (RTEMS/STM32),
      4. séance 5 et TP5/6 (Xenomai/Olinuxino-A13micro) nécessitant le noyau patché Xenomai de Linux (alternativement, une version récente du noyau -- 3.4.90 -- sans support Xenomai mais avec support de ethernet sur USB-gadget, grace au patch appliqué au git suivant),
      5. séance 7 et TP7 (radio définie par logiciel -- SDR/GNURadio).
    3. Master 1 EEA (2nd semestre, 11 séances):
      1. séance 1 et TP STM32,
      2. séance 3
      3. séance 4
      4. séance 5 et TP FIR sur STM32
      5. séance 7 FreeRTOS/STM32 et le TP (FreeRTOS sur STM32) associé qui nécessite l'archive suivante.
      6. séances 9-10 pourquoi un OS, Linux et buildroot pour Olinuxino A13 (accès matériel depuis le shell/web)
      7. séance 11 accès matériel depuis le C, problème de la MMU.
      8. Examen et sa correction (2015)
    4. Master 1 EEA (2nd semestre, 2 séances): TP antennes
    5. License 3 EEA, 4 séances de transmissions numériques sur liaison radiofréquence + TP SDR, 1 séances sur liaisons sur internet. Examen 2015 portant sur les transmission numériques sur porteuse radiofréquence et sur internet,


      POCSAG decoding


      POCSAG decoding (with scope)
    6. License 3 EEA, projets (2nd semestre) : exemple de présentation (Persistence of Vision).
    7. License 3 EEA, 5 TPs (1er semestre)+5 TPs (2nd semestre) sur introduction aux microcontroleurs (et examen de TP 2015):
      1. TP1/2 (bases de l'Atmega32U4) -- nécessite la bibliothèque associée,
      2. TP3 (interruptions de l'Atmega32U4),
      3. TP4 (afficheur 7-segments -- GPIO et interruptions),
      4. TP5/7+8 (ADC) (TP6 est correction d'examen),
      5. TP9 sur la communication sur bus synchrone (SPI, I2C) avec application à la communication avec carte SD,
      6. TP10 sur les modes veille/consommation.
    8. Master 1 informatique (2nd semestre, 15 séances) :
      1. séance 1 introduction au microcontroleur (Atmega32U4) et son TP (séances 1-3 suivi du début du second TP pour les interruptions),
      2. séance 2 spécificités du C pour l'embarqué,
      3. séance 4 bibliothèques (stubs newlib), suivi en seconde partie par un TP (STM32) qui se finit pendant une séance complète ensuite,
      4. séance 6 environnements exécutifs et le TP (FreeRTOS sur STM32) qui nécessite l'archive de FreeRTOS pour STM32. Pour exploiter Qemu/STM32, deux fichiers doivent définir la plateforme de travail avec USART1 pour communiquer et les deux LEDs sur C8 et C9 : placer la plateforme stm32_p103.c et le processeur stm32.c dans le répertoire hw/arm avant de compiler,
      5. séance 7 linux embarqué/aspects utilisateur, toolchain et compilation de buildroot pour ARM A13,
      6. séance 8 linux embarqué/accès matériel en espace utilisateur,
      7. séance 9 linux embarqué/aspects développeur, et les notes sur le développement d'un module noyau pour Linux 3.x (Olimexino A13).
      8. séance 10 linux embarqué/gestion des interruptions dans le noyau.
      9. Plan proposé pour les présentations de TPs,
      10. Examen et sa correction (2015)

  • ENSMM :
    1. cours systèmes embarqués de 12 heures ETE (3eme année).
      TPs associés (2008-2009 : TP1 sur la programmation en assembleur sur MSP430 et TP2 sur uCliunx sur Coldfire ; 2009-2010 : TP1 sur la programmation en C sur MSP430 suivi de TP2 sur le traitement du signal sur signaux acquis par MSP430, et mise à jour du TP sur uCliunx sur Coldfire). En 2014, j'ai remplacé le MSP430 par le STM32 dont je me sers au quotidien : le TP d'introduction suivi du traitement du signal (filtrage et FFT).
      Examens 2008, 2009, 2011, 2012.
      Les TPs sont réalisés sur live-CD Debian/GNU Linux (705 MB) contenant tous les outils nécessaires (compilateur x86, 68k, ARM, MSP430 + textes des TPs et programmes d'exemples), scite comme éditeur de texte, automount pour sauver sur clé USB. Contient aussi GNURadio et GNURadio-companion mais pas assez de temps pour présenter ces outils en TP, seuls audacity, gnuplot et alsamixer sont utilisés.
    2. Un cours de 4 heures (?!) sur les capteurs à détection directe et transducteurs acoustiques/optiques associés.

    Research:

    1. J.-M Friedt
      Cartographier le bout du monde
      soumis GNU/Linux Magazine France


    2. J.-M Friedt, G. Cabodevila
      Exploitation de signaux des satellites GPS reçus par récepteur de télévision numérique terrestre DVB-T

      OpenSilicium 15, Juillet-Sept. 2015, cours d'automatique G. Cabodevila en référence de l'article.

      English translation of the article, entitled "Decoding GPS satellite signals received by terrestrial digital video-broadcast (DVB-T) receivers" for the European Frequency and Time Seminar (EFTS). Some extension on the use of DVB-T -- limited to 2.4 MS/s or practically 2.046 MS/s to exactly match the Nyquist sampling rate of GPS signals -- is concerned with the use of the (now discontinued) GN3S v.2 dongle. Although "retired", the authors of gnss-sdr have kept the driver up to date which has been used in our latest (July 2015) experiments as summarized here.
      This article is a sequel to the presentation:
      S. Martinez Gutierrez, J.-M Friedt, G. Cabodevila, P.Y Bourgeois, E. Rubiola
      Software Defined Radio for processing GNSS signals
      slides presented at FOSDEM 2015 and archive of data and scripts. Video recorded during the talk.



    3. Sound from the ISS/Signal depuis l'ISS


      Multiplexed broadcast FM reception
      Réceptions simultanées sur la bande FM commerciale
      J.-M Friedt
      La réception de signaux venus de l'espace par récepteur de télévision numérique terrestre
      OpenSilicium 13(Dec 2014/Jan-Fev 2015)
      erreur sur la Fig. 14 : 136,8+1,4=138,2 et non 140,2 ! Mais NOAA18 reste sous cette borne, donc le texte reste juste.

    4. J.-M Friedt, A. Hugeat
      A low cost approach to acoustic filters acting as GPR cooperative targets for passive sensing
      manuscript for the proceedings of IWAGPR 2015 (Firenze, Italy), and associated slides.

    5. A. Bontempi, D. Teyssieux, J.-M. Friedt, L. Thiery, D. Hermelin, P. Vairac
      Photo-thermoelastic Quartz Tuning Fork excitation for Dynamic Mode Atomic Force Microscope
      Appl. Phys. Lett. vol. 154104, p.154104 (2014)
      manuscript

    6. B. Francois, J.-M. Friedt, G. Martin, S. Ballandras
      High temperature packaging for surface acoustic wave transducers acting as passive wireless sensors
      Sensors and Actuators A: Physical, vol. 224 (2015), pp.6-13
      submitted manuscript



    7. Un film résumant l'insertion d'un nuage de points 3D
      issu de Micmac dans QGis.
      A movie illustrating how to insert a 3D point cloud generated
      by Micmac in QGis.
      J.-M Friedt
      Reconstruction de structures tridimensionnelles par photographies : le logiciel MicMac
      OpenSilicium 12 (Sept-Oct-Nov 2014)
      manuscrit et transparents pour une présentation à Sequanux.
      English translation for the 13th International Circumpolar Remote Sensing Symposium (2014, Reykjavík, Iceland) and the slides of the presentation we gave about "Assessment of photogrammetry Structure-from-Motion compared to terrestrial LiDAR scanning for generating Digital Elevation Models -- Example in a polar basin, Spitsbergen 79oN" (E. Bernard, J.-M Friedt, A. Prokop, F. Tolle, M. Griselin).
      "Gestion d'Informations Spatialisées : outils libres pour l'exploitation de données géolocalisées -- au-delà des aspects géographiques" pour la conférence CETSIS2014.
      An example of a WebGL based point cloud browser: WARNING, chances are that your web browser will crash when accessing this webpage (Chromium 35.0.1916.153 works fine on a Debian/GNU Linux computer, Iceweasel 30.0 crashes on the same computer).

    8. J.-M. Friedt, R. Boudot, G. Martin, S. Ballandras
      Probing a dielectric resonator acting as passive sensor through a wireless microwave link
      Rev. Sci. Instrum. vol. 85, num. 9, pp. 024409RSI (2014)
      manuscript and proof of the article.

    9. J.-M Friedt
      Le télescope à particules cosmiques : principe de la mesure par coincidence
      Opensilicium 11 (Juin-Juillet-Aout 2014)

    10. G. Goavec-Mérou, J.-M Friedt
      GNURadio as a general purpose digital signal processing environment
      FOSDEM 2014
      slides of the presentation and link to the video. Notice that Sylvain Munault and Harald Welte mentioned a mistake in my statement: although the Elonics E4000 is no longer available, osmosdr will keep on running with all the other DVB-T chips and most significantly the R820T.
      G. Matten, J.-M Friedt, E. Carry
      Prototypage de traitements numériques de signaux au moyen d'un outil libre : GNURadio
      document for the CETSIS2014 conference, published in Journal sur l'enseignement des sciences et technologies de l'information et des systèmes (J3EA, in French).

    11. N. Chrétien, J.-M. Friedt, G. Martin
      Local oscillator phase noise limitation on the resolution of acoustic delay line wireless passive sensor measurement
      Rev. Sci. Instrum., vol. 85, n.6, 065001 (2014)
      manuscript and published article.

    12. N. Chrétien, J.-M. Friedt, G. Martin, S. Ballandras
      Acoustic transducers as passive sensors probed through a wireless radiofrequency link
      Instrumentation, Mesure, Métrologie (I2m), vol 13, num3-4 (2013), pp.159-178
      manuscript

    13. J.-M Friedt
      Quelques considérations sur les particules ionisantes présentes en haute altitude -- aspects expérimentaux et d'analyses de données
      Opensilicium vol. 9 (Dec 2013-Jan-Fev 2014), pp.28-39
      Le programme geiger.c utilisé pour enregistrer les coups du compteur sur un port série virtuel (convertisseur USB-série) sous GNU/Linux, modifié pour réinitialiser le module noyau du port série lors d'une déconnexion alors que le compteur tourne (cas fréquent lorsque le compteur et l'ordinateur sont dans un sac à dos). Remplacer le nom du module noyau si un autre adaptateur est utilisé (ici PL2303).
      manuscript

    14. J.-M Friedt
      Correction géométrique d'images prises en vue oblique -- projection sur modèle numérique d'elévation pour exploitation quantitative de photographies numériques
      GNU/Linux Magazine France n.167, Janvier 2014, pp.42-57
      manuscrit Complements concerning the cast shadow calculation.
      Référence manquante/missing reference worth checking (new 25-m European DEM + r.sun usage), added following the manuscript submission..
      Three free sources of DEM are available for these tests: SRTM, EU-DEM which combines SRTM with ASTER, and the French mapping agency IGN (for the latter, Lambert 93 projection is indicated to QGis using the epsg2154 coordinate transformation system). Difference between each 2 of these DEM shows small (less than 5 m) discrepencies over flat areas -- Mer de Glace and Chamonix valley -- the discrepencies can be up to 190 m in the steepest part of the Mont Blanc area.

    15. G. Goavec-Mérou, N. Chrétien, J.-M Friedt, P. Sandoz, G. Martin, M. Lenczner, S.Ballandras
      Fast contactless vibrating structure characterization using real time FPGA-based digital signal processing: demonstrations with a passive wireless acoustic delay line probe and vision
      Rev. Sci. Instrum Vol 85, issue 1, Jan. 2014, pp.015109
      published version. "Under AIP policy, you have the right to post this article on your personal web page or your employer's website, provided you include the appropriate copyright and a web link to AIP's official online abstract, as indicated by the URL above."

    16. J.-M Friedt
      Hacking the radiofrequency spectrum: GNURadio as a signal processing prototyping tool
      OHM 2013 (Observe, Hack, Make) (The Netherlands, 31 Jul-04 Aug. 2013)
      slides of the presentation and recorded talk on Youtube online thanks to the organizers of the conference.

    17. J.-M Friedt, A. Saintenoy, T. Baron, E. Lebrasseur, T. Laroche, S. Ballandras, M. Griselin
      High-overtone Bulk Acoustic Resonator as passive sensor acting as buried cooperative target interrogated by Ground Penetrating RADAR
      Manuscript for the proceedings and slides of 2013 IFCS (Prague, Czech Rep.)

    18. D. Teyssieux, T. Baron, J.-M. Friedt, G. Martin, P. Vairac
      Absolute phase and amplitude mapping of surface acoustic wave fields
      Manuscript for the proceedings of 2013 IFCS (Prague, Czech Rep.)

    19. N. Chrétien, J.-M. Friedt, G. Martin, S. Ballandras
      A stroboscopic approach to surface acoustic wave delay line interrogation
      Manuscript for the proceedings of 2013 IFCS (Prague, Czech Rep.)

    20. J.-M Friedt
      GNURadio as a digital signal processing environment: application to acoustic wireless sensor measurement and time & frequency analysis of periodic signals
      Manuscript for the proceedings and poster presented at 2013 IFCS (Prague, Czech Rep.)

    21. J. Marc, C. Canard, A. Vailly, V. Pichery, J.-M. Friedt
      Le diapason à quartz comme capteur : utilisation de la carte son de PC pour l'instrumentation
      Bulletin de l'Union des Physiciens Vol 107, num 958, pp.1051-1076 (2013)
      manuscript
      Film de la manip (signal généré par GNURadio, affichage sur oscilloscope), et image ISO d'une distribution Debian/GNU Linux contenant GNURadio pour graver sur CD ou exécuter dans un environnement de virtualisation tel que qemu ou VirtualBox ou VMWare Player (configuré pour clavier azerty). Pour clavier qwerty, TAB au démarrage et retirer les options passées au noyau concernant le clavier français.

    22. J.-M Friedt, A. Saintenoy, S. Chrétien, T. Baron, E. Lebrasseur, T. Laroche, S. Ballandras, M. Griselin
      High-overtone Bulk Acoustic Resonator as passive Ground Penetrating RADAR cooperative targets
      manuscript J. Appl. Phys., vol 113, num. 13, pp. 134904 (2013)
      published version ("We are also pleased to send you a complimentary copy of your article in PDF form. Under AIP policy, you have the right to post this article on your personal web page...") with the direct link to the AIP web page.
      On a side note, what GPR is not, or yet another reason not to trust television: Ground Penetrating RADAR in NCIS (episode 9, season 1, 31 min. from the beginning), CSI NY (episode 20, season 6, 1 min. 40 sec. from the beginning and episode 20, season 2). The newer seasons of the series (Season 14, Episode 18) is hardly better, with a radargram scrolling from top to bottom. CSI Miami (season 4, episode 18 -- Double Jeopardy-- and season 6, episode 18) is correct in the script but not in the image (shows a gun buried in concrete, but the actor speaks of a hyperbolic reflection, so ... half correct). Despite an initial attempt to get the science right in Bones (season 1, episode 7, 34 min 11 sec), the producers seem to have thought that the audience was not up to the task of thinking and reverted to the same idiocy as the other series (Bones (season 5, episode 1, 5 min. 38 sec) in which GPR even allows for identifying the material a reflector is made of. X-Files (season 1, epidosde 20) has an episode with a brief scene using GPR plotting on paper and a display on an echography-like screen not showing much other than noise (as observed in real life ? but why the cone-shaped field of view ? Scully: "An experienced operator attempts to differentiate if the signal is a body or is stone or a hole in the ground."). As opposed to the statement on the GSSI web page, I have not found reference to GPR in Jurassik Park, although there is a scene using seismic in which they detect centimeter-scale bones using meter-long waves (but then ... I have no expertise with seismic ...). I am greatful to the GSSI Marketing Communications Manager for kindly providing the necessary information for locating the episode of Crossing Jordan, as stated on the GSSI web page and MTI web sites, for a brief reference to GPR and what looks like an actual, although static, radargram on the display. Hawaii Five-0 Season 2, Episode 7 (20 min. from beginning) needs 3 desktop LCD screens to display radargrams and beeps when bodies are "detected". Sanctuary (season 03, episode 16) does not bother showing the instrument but just mentions its existence. One "movie" refers to GPR, Return to House on Haunted Hill, but beyond exhibiting an inductively coupled metal detector, the movie is so bad that I did not bother checking if the GPR is actually used to find cavities. In the same vein, Flashpoint ("One Wrong Move") episode 14 of season 2, with a metal detector and some stuff glued to the coil. In the "litterature", Dan Brown's Deception Point mentions GPR p.329 of the ebook version (Simon and Schuster, 2001): "Tolland helped her unpack the Ground Penetrating Radar and position it on the ice. The instrument looked like three miniature snowplow blades that had been affixed in parallel to an aluminum frame. The entire device was no more than a yard long and was connected by cables to a current attenuator and a marine battery on the sled.". So far so good, but then "Mike, I need to align the GPR transmitter with the meteorite site [...] All the work is in setup. The actual shot takes only a second." Wish it were ...

    23. E. Bernard, J.-M. Friedt, A. Saintenoy, F. Tolle, M. Griselin, C. Marlin
      Where does a glacier end ? GPR measurements to identify the limits between the slopes and the real glacier area. Application to the Austre Lovénbreen, Spitsbergen -- 79o N
      manuscript accepted International Journal of Applied Earth Observation and Geoinformation (special issue on "Polar regions in transformation"), vol 27, pp. 100-108 (2014)
      (online 19 August 2013))



    24. Recording ACARS messages
      and voice communication:
      with narrowband filter.


      Recording ACARS messages
      and voice communication:
      no narrowband filter.
      J.-M Friedt, G. Goavec-Mérou
      La réception radiofréquence définie par logiciel (Software Defined Radio -- SDR)
      GNU/Linux Magazine France 153 (Octobre 2012), pp.4-33
      manuscrit
      The article focuses on implementations of digital processing algorithms on GNURadio 3.6: a port of the ACARS decoding software to GNURadio 3.7 is available at Sourceforge web site. Although the detailed implementation has changed, the basics remain the same and so does the general development method described.
      J.-M Friedt
      Radiofrequency communication on a budget: a software approach
      Invited at First EPS conference "Physics for Development" Research in Physics - Physics applications - Education 11-12 October Palais des Académies (Brussels, Belgium)
      slides and a quick addition concerning the use of opensource software for data processing

    25. G. Goavec-Mérou, K. Breshi, G. Martin, S. Ballandras, J. Bernard, C. Droit, J.-M Friedt
      Multipurpose use of radiofrequency sources for probing passive wireless sensors and routing digital messages in a wireless sensor network
      eWise workshop, at IEEE iThings conference, Besançon, Nov. 2012
      slides and manuscript of the proceeding.

    26. J.-M Friedt, N. Chrétien, T. Baron, E. Lebrasseur, G. Martin, S. Ballandras
      High-overtone Bulk Acoustic Resonator (HBAR) as passive sensor: towards microwave wireless interrogation
      eWise workshop, at IEEE iThings conference, Besançon, Nov. 2012
      slides and manuscript of the proceeding.

    27. J.-M Friedt
      Introduction au langage PostScript
      GNU/Linux Magazine France 152 (Septembre 2012), pp.60-70
      manuscrit de l'article corrigé de l'absence des codes d'exemple de la fractale de Mandelbrot et du diagramme de bifurcation de Feigenbaum .
      Un fascicule rédigé pour Science en Fete 1997, dont une section (pp.11-14) par E. Jalade décrit le pavage de Penrose, et code postscript associé par C. Papazian.

    28. T. Laroche, G. Martin, W. Daniau, S. Ballandras, J.-M. Friedt, J.-F. Leguen
      A Coupled-Mode Filter Structure for Wireless Transceiver-Sensors using Reactive Loads
      IFCS 2012 (Baltimore, USA)
      manuscript for the proceedings (by S. Ballandras)

    29. P. Varshney, B.S. Panwar, P. Rathore, S. Ballandras, B. Francois, G. Martin, J.-M. Friedt, T.Rétornaz
      Theoretical and experimental analysis of high Q SAW resonator transient response in a wireless sensor interrogation application
      IFCS 2012 (Baltimore, USA)
      poster and manuscript for the proceedings

    30. T. Rétornaz, N. Chrétien, J.-M Friedt, G. Martin, S. Ballandras
      Time reversal: a flexible approach for identifying and measuring surface acoustic wave delay lines acting as wireless, passive sensors
      IFCS 2012 (Baltimore, USA)
      poster and manuscript for the proceedings

    31. N. Chrétien, J.-M Friedt, S. Ballandras, B. Francois, G. Martin, P. Varshney
      On the need for low phase noise oscillators for wireless passive sensor probing
      manuscript Sensorcomm 2012 (Rome, Italy, Aug. 2012) following an internal lab presentation on the influence of oscillator phase noise on wireless passive sensor measurement resolution using a wireless link.

    32. C. Droit, J.-M.Friedt G. Goavec-Mérou, G. Martin, S. Ballandras, K. Breschi Jimenez-Ramirez, J. Bernard, H. Guyennet
      Radiofrequency transceiver for probing SAW sensors and communicating through a wireless sensor network
      manuscript Sensorcomm 2012 (Rome, Italy, Aug. 2012)

    33. J.- M Friedt, G. Goavec-Merou
      Traitement du signal sur système embarqué -- application au RADAR à onde continue
      manuscript
      GNU/Linux Magazine France n.149 (Mai 2012)
      Une photographie de la manip avec le ventilateur dont les pales sont couvertes d'adhésif métallisé

    34. G. Goavec-Merou, J.-M Friedt
      Le microcontroleur STM32 : un coeur ARM Cortex-M3
      manuscript
      GNU/Linux Magazine France n.148 (Avril 2012)

    35. J.-M Friedt, C. Droit, S. Ballandras, S. Alzuaga, G. Martin, P. Sandoz
      Remote vibration measurement: a wireless passive surface acoustic wave resonator fast probing strategy
      manuscript of the article published in Rev. Sci. Instrum. vol. 83, p.055001 (May 1st 2012)
      Link to the AIP web site.
      Error in the caption of Fig. 1: C1 is 0.56 fF (as correctly noted in the supplementary material). Possible error in the caption of Fig. 3: I am not sure where the 362 Hz comes from, the calculation in the text is correct and so is the stress value mentioned in the caption.

    36. T. Rétornaz, J.-M Friedt, S. Alzuaga, T. Baron, E. Lebrasseur, G. Martin, T. Laroche, S. Ballandras, M. Griselin, J.-P. Simonnet
      Piezoelectric radiofrequency transducers as passive buried sensors
      manuscript and proof of an article accepted in Nondestructive Testing and Evaluation -- Special Issue on Civil Eng. Applications of GPR vol.27 num.3 pp.209-218 (10/2011, revised 01/2012, online May 21 2012)

    37. E. Bernard, J.-M Friedt, G. Martin, M. Griselin, C. Marlin
      La photographie terrestre haute résolution pour quantifier les dynamiques nivales de versants : l'exemple d'un bassin glaciaire arctique (Loven Est, Spitsberg, 79oN)
      La Houille Blanche Num. 5, pp. 20-28, Nov. 2011
      manuscript

    38. D. Rabus, T. Baron, E. Lebrasseur, S. Alzuaga, G. Martin, S. Ballandras, J.-M. Friedt
      Novel Narrowband Acoustic Sensors for Sub-GHz Wireless Measurements
      IEEE Sensors conference (Limerick, Ireland from 28-31 October 2011)
      manuscript for the proceedings
      slides of the oral presentations
      A slightly extended version prepared for an Energy Harvesting Workshop organized by the French embassy in Japan (7-9 Nov. 2011) and the Indo-French Symposium on Sensors Technologies and Systems (IIT Delhi, 1-4 March 2012)

    39. E. Bernard, J.-M Friedt, F. Tolle, M. Griselin, G. Martin, D. Laffly, C. Marlin
      Monitoring seasonal snow dynamics using ground based high resolution photography (Austre Lovénbreen, Svalbard, 79oN)
      ISPRS Journal of Photogrammetry and Remote Sensing Vol. 75, January 2013, pp. 92–100
      manuscript

    40. F. Vernier, R. Fallourd, J.-M. Friedt, E. Trouvé, J.-M. Nicolas, L. Moreau
      Fast Correlation Technique for Glacier Flow Monitoring by Digital Camera and Space-borne SAR Images
      EURASIP Journal on Image and Video Processing Vol. 11, doi:10.1186/1687-5281-2011-11
      manuscript

    41. J.-M Friedt
      Auto et intercorrélation, recherche de ressemblance dans les signaux : application à l'identification d'images floutées
      GNU/Linux Magazine France 139 (Juin 2011)
      manuscrit
      Une référence qui mérite à être citée et oubliée dans la biblio.

    42. E. Bernard, J.-M Friedt, F. Tolle, C. Marlin, M. Griselin
      Using ground based high resolution photography for seasonal snow and ice dynamics (Austre Lovénbreen, Svalbard, 79°N)
      Alpine Glaciological Meeting (AGM) 2011, Munchen, Germany
      slides of the presentation

    43. A. Saintenoy, J.-M. Friedt, F. Tolle, E. Bernard, D. Laffly, C. Marlin, M. Griselin
      High density coverage investigation of The Austre LovénBreen (Svalbard) using Ground Penetrating Radar
      6th International Workshop on Advanced Ground Penetrating Radar (IWAGPR), 2011 (22-24 June 2011, Aachen, Germany)
      article for the proceedings of the conference
      A. Saintenoy, J.-M. Friedt, A. D. Booth, F. Tolle, E. Bernard, D. Laffly, C. Marlin, M. Griselin
      Deriving ice thickness, glacier volume and bedrock morphology of the Austre Lovénbreen (Svalbard) using Ground-penetrating Radar
      Manuscript, Near Surface Geophysics vol. 11, num. 2, April 2013, pp.253-261

    44. T Rétornaz, J.-M Friedt, A. Saintenoy, L. Reindl, S. Chrétien, S. Alzuaga, G. Martin, S. Ballandras, M. Griselin, J.-M. Simonnet
      Piezoelectric radiofrequency transducers as passive buried sensors
      RADCOM 2011, Hamburg, Germany

      slides of the oral presentation

    45. T Rétornaz, J.-M Friedt, S. Alzuaga, T. Baron, G. Martin, T. Laroche, S. Ballandras, M. Griselin, J.-M. Simonnet,
      Piezoelectric radiofrequency transducers as passive buried sensors
      European Geophysical Union (EGU) 2011, Vienna, Austria
      abstract and associated poster

    46. F. Kardous, L. El Fissi, J-M Friedt, F. Bastien, W. Boireau, R. Yahiaoui, JF. Manceau, S. Ballandras
      Integrated active mixing and biosensing using low frequency vibrating mixer and Love-wave sensor for real time detection of antibody binding event
      Journal of Applied Physics vol. 109, 094701 (2011)
      manuscript including corrections following the comments of the reviewer, and final copy.
      direct link to AIP

    47. G. Goave-Merou, J.-M Friedt
      Développement pour iPod Touch sous GNU/Linux : application à la communication par liaison Bluetooth
      GNU/Linux Magazine France Hors Série 51 (Dec 2010-Jan 2011), pp.34-53
      sample software
      As an example of a MobileTerminal application (grabbed using uishoot), SatTrack compiled for iPod Touch 3G using the iphonedevonlinux toolchain: put the SatTrack directory in $HOME (either /var/mobile or /var/root, depending on which user you are using), cd SatTrack/run and ./sattrack to predict NOAA 18 passes (default configuration, see data/defaults0.dat)
      manuscript

    48. J.-M Friedt
      Introduction à SPICE3 : simulation de circuits électroniques, et au-delà
      OpenSilicum 1 (Janvier-Mars 2011)
      archive des exemples
      transparents de Rémi Brendel (professeur ENSMM) sur WinSpice, dont la trame a servi de référence à mon document
      manuscript

    49. J.-M Friedt, T. Rétornaz, S. Alzuaga, T. Baron, G. Martin, T. Laroche, S. Ballandras, M. Griselin, J.-P. Simonnet
      Surface Acoustic Wave Devices as Passive Buried Sensors
      Journal of Applied Physics vol. 109, issue 3, p. 034905 (02/2011)
      manuscript
      proof of the article
      error in item 3 of the 7th page of the article: the FSPL cannot be λ^2/d^4 (not homogeneous). I have forgotten to include the radar cross section ~ λ^2 in the equation, which should read FSPL ~ λ^4/d^4 (will not change the conclusion)

    50. R. Fallourd, F. Vernier, J.-M. Friedt, G. Martin, E. Trouvé, L. Moreau, J.-M. Nicolas
      Monitoring temperate glacier with high resolution automated digital cameras: application to the Argentière glacier
      Photogrammetric Computer Vision and Image Analysis (PVC2010, Paris, France)
      proceeding of the conference

    51. D. Laffly, E. Bernard, M. Griselin, F. Tolle, J-M. Friedt, G. Martin and C. Marlin
      High temporal resolution monitoring of snow cover using oblique view ground-based pictures
      The 11th International Circumpolar Remote Sensing Symposium (Cambridge UK, Sept. 2010)
      Slides of the presentation
      Manuscript of an article publication in the associated special issue of Polar Record Vol. 48, Num. 01, pp 11-16 (Jan. 2012), and final published version

    52. J-M. Friedt, F. Tolle, E. Bernard, M. Griselin, D. Laffly and C. Marlin
      Assessing the relevance of digital elevation models to evaluate glacier mass balance: application to Austre Lovénbreen (Spitsbergen, 79°N)
      The 11th International Circumpolar Remote Sensing Symposium (Cambridge UK, Sept. 2010)
      Slides of the presentation
      Manuscript of an article publication in the associated special issue of Polar Record Vol. 48, Num. 01, pp 2-10 (Jan. 2012), and final published version

      Notwithstanding the assignment of copyright in their contribution, all contributors retain the following non-transferable rights: The right to post the definitive version of the contribution as published at Cambridge Journals Online (in PDF or HTML form) on their personal or departmental web page, no sooner than upon its appearance at Cambridge Journals Online, subject to file availability and provided the posting includes a prominent statement of the full bibliographical details, a copyright notice in the name of the copyright holder (Cambridge University Press or the sponsoring Society, as appropriate), and a link to the online edition of the journal at Cambridge Journals Online.

    53. N. Chrétien, M. Lamothe, G. Goavec-Mérou, J.-M Friedt
      Development of libraries for radiofrequency instrumentation using FPGAs
      10eme Rencontres Mondiales du Logiciel Libre (6-10/07/2010, Bordeaux, France)
      slides

    54. G. Goavec-Merou, J.-M Friedt
      Developing for Apple iPod under GNU/Linux
      10eme Rencontres Mondiales du Logiciel Libre (6-10/07/2010, Bordeaux, France)
      slides

    55. D. Rabus, J.-M. Friedt, S. Ballandras, G. Martin, E. Carry, and V. Blondeau-Patissier
      A high sensitivity open loop electronics for gravimetric acoustic wave-based sensors
      2010 EFTF (Noordwijk, The Netherlands)
      manuscript for the proceedings
      manuscript IEEE Trans. UFFC (2013) vol 60, num 6, 1219-1226 and proof of the document.

    56. G. Goavec-Merou, J.-M Friedt, E. Pamba Capo-Chichi, H. Guyennet
      Porting the FAT16 filesystem to TinyOS-2.x: non-volatile mass storage for low power sensor network nodes
      rejected 8th SENSYS (November 2010, Zurich Switzerland)
      rejected manuscript

    57. C. Droit, G. Martin, S. Ballandras, J.-M Friedt
      A frequency modulated wireless interrogation system exploiting narrowband acoustic resonator for remote physical quantity measurement
      Rev. Sci Instrum. Vol 81, Issue 5, 056103 (2010)
      manuscript and supplementary material
      I am delighted to notice that AIP allows me to put a copy of the formatted article on my web site: "We are also pleased to send you a complimentary copy of your article in PDF form. Under AIP policy, you have the right to post this article on your personal web page or your employer's website, provided you include the appropriate copyright and a web link to AIP's official online abstract, as indicated by the URL above."

    58. G. Goavec-Mérou, J.-M Friedt
      Etude d'un système d'exploitation pour microcontroleur faible consommation (TI MSP430) : pilote pour le stockage de masse au format FAT sur carte SD
      GNU/Linux Magazine France Hors Série 47 (Avril-Mai 2010), pp.58-77
      manuscript

    59. J.-M Friedt
      Controle d'instruments scientifiques : les protocoles GPIB, VXI11 et USBTMC
      GNU/Linux Magazine France 124, 26-39 (Férier 2010), pp.60-66
      manuscript
      Complément à l'article : lecture des traces sur un oscilloscope Tektronix TDS20xx. Les commandes GPIB ne sont pas documentées dans le manuel de l'utilisateur. J'ai testé la séquence suivant (lire voie 2)
      cat /dev/usbtmc0
      echo "*IDN?" > /dev/usbtmc1
      cat < /dev/usbtmc1
      echo "DATA:ENC ASCII" > /dev/usbtmc1
      echo "DATA:SOURCE CH2" > /dev/usbtmc1
      echo "CURVE?" > /dev/usbtmc1
      cat < /dev/usbtmc1 >> t
      cat < /dev/usbtmc1 >> t
      
      donne les coordonnées des pixels, qu'il faut convertir en tension par (la liste des commandes GPIB en japonais et un driver Matlab pour ces osiclloscopes ) WFMPRE:YMULT? et WFMPre:YZERO?

    60. J.-M Friedt
      Tomtom Go : une plateforme pour l'acquisition sans fil de mesures géoreférencees
      GNU/Linux Magazine France 122, 26-39 (Décembre 2009)
      manuscript

    61. J.-M Friedt, C. Droit, G. Martin, and S. Ballandras
      A wireless interrogation system exploiting narrowband acoustic resonator for remote physical quantity measurement
      Rev. Sci. Instrum. vol. 81, 014701 (2010)
      manuscript
      erroneous assumption: I compute the bias using a parabolic fit on a BvD model, while the actual receiver stage of the SAW interrogation unit uses a logarithmic power detector (Analog Devices AD8362). Hence, the error between parabolic fit and "true" resonance shape should be performed on the log(BvD), not the BvD model itself.

    62. L. El Fissi, J.-M. Friedt, F. Chérioux, S. Ballandras
      Amine functionalized SU-8 layer guiding Love mode surface acoustic wave
      Sensors and Actuators B vol 144, issue 1 (January 2010), pp.23-26
      manuscript

    63. L. El Fissi, J.-M. Friedt, F. Chérioux, V. Luzet, S. Ballandras
      Fabrication and Packaging Technologies of Love-wave-based Microbalance for Fluid Analysis
      Sensors and Actuators A vol 162 (2010) pp.304-309 (preliminary version in Procedia Chemistry vol.1, issue 1, Proceedings of Eurosensors XXIII conference, September 2009, pp.52-55)
      manuscript of the article

    64. T. Rétornaz, J.-M. Friedt, G. Martin, S. Ballandras
      USRP and GNURadio for prototyping radiofrequency communication algorithms
      RMLL 2009
      Abstract and slides

    65. J.-M Friedt, G. Goavec-Merou
      Interfaces matérielles et OS libres pour Nintendo DS : DSLinux et RTEMS
      GNU/Linux Magazine France Hors Série 43, aout 2009
      manuscrit
      exemple en espace utilisateur et exemples en espace noyau pour DSLinux, ainsi que quelques exemples pour RTEMS
      Un patch rtems_nds_wireless.patch pour rendre le wifi fonctionnel pour RTEMS 4.9.1 et 4.9.2
      A patch reorganizing a data structure in the NDS BSP of RTEMS 4.9.1 et 4.9.2 needed to make the wifi interface functional

      complements suite aux RMLL2009 : utilisation d'un eeePC701 en access point pour connexion directe DS-eeePC (explications de Fred. Tronel)

      slides de la présentation aux RMLL 2009 (Nantes)
      slides and article for Hacking at Random (HAR2009) discussing the same topic in English (YouTube video of the presentation).

    66. J.-M Friedt, E. Carry
      Développement sur processeur à base de coeur ARM7 sous GNU/Linux
      GNU/Linux Magazine France 117 (Juin 2009), pp.40-59
      exemples associés à l'article (carte SD et format FAT, écran LCD, bases) + compression sans pertes au moyen de SLZW porté à l'ADuC7026.
      schéma et implémentation du circuit contenant un ADuC7026 et AD9954 (Eagle 4).
      manuscrit
      update: binary archive of the gcc-4.3.3 toolchain which seems to have corrected the IRQ code generation bugs.

    67. J.-M Friedt, T. Rétornaz, G. Martin, T. Laroche, J.-P. Simonnet, E. Carry, S. Ballandras
      Surface Acoustic Wave Resonators as Passive Buried Sensors
      2009 EFTF/IFCS (Besançon, France, April 2009)
      slides of the presentation
      article for the proceedings . Warning: some mistakes in this paper, as was pointed out to us by a reviewer when submitting this paper for publication in IEEE Trans. Ultrasonics, Ferroelectrics and Freq. Control: we model the propagation of the wave with a loss model following a 1/d2 law. This is wrong in the case of a radar, where the target acts as a point like source and hence only 1/d2 fraction of the energy reaching the target is used as the new source, yielding a 1/d4 behaviour (the classical radar equation). This analysis has been corrected in a version of the paper presented at Sensor Devices
      J.-M Friedt, T. Rétornaz, G. Martin, T. Laroche, S. Alzuaga, J.-P. Simonnet, E. Carry, S. Ballandras
      Surface Acoustic Wave Resonators as Passive Buried Sensors
      article for the proceedings .
      The First International Conference on Sensor Device Technologies and Applications -- SENSORDEVICES 2010 (Venice, Italy, July 2010)

    68. S. Guinot, J.-M Friedt
      GNU/Linux sur Playstation Portable
      GNU/Linux Magazine France 114 , Mars 2009, pp.30-40
      manuscrit
      archive du bootloader (jeu PSP) pour firmware 1.50 (placer pspboot et pspboot% dans psp/game du MS, placer l'image compressée du noyau linux nommé vmlinux.bin dans eboot)
      un exemple de noyau fonctionnel
      slides and article for Hacking at Random (HAR2009) discussing the same topic in English.

    69. J.-M Friedt
      Affichage et traitement de données au moyen de logiciels libres
      GNU/Linux Magazine France, 111 (Dec. 2008)
      manuscrit
      Circuit pour l'ecoute des chauves souris (Nouvelle Electronique Janvier 1996)
      Exemple de fichier son de sonar de chauve souris
      Données acquises avec le circuit précédent, modifié pour une bande passante de 50 kHz, et spectrogrammes résultant.

    70. J.-M Friedt
      Analyse des étiquettes d'identification par radiofréquence (RFID)
      GNU/Linux Magazine France,
      Hors Série 39 (Nov.-Dec. 2008)
      manuscrit

    71. P.Sandoz, J.-M Friedt, E. Carry
      Vibration amplitude of a tip-loaded quartz tuning fork during shear force microscopy scanning
      Rev. Sci. Instrum., vol 79, issue 8 (08/2008), DOI: 10.1063/1.2965137
      proof of the article

    72. J. Garcia, J.-M Friedt
      Communication asynchrone et interface graphique portables sous Qt
      Hors série GNU/Linux Magazine France n.38 (08/2008)
      manuscript
      codes sources associés

    73. T. Rétornaz, J.-M Friedt
      Instrumentation scientifique reconfigurable
      Hors série GNU/Linux Magazine France n.38 (08/2008)
      manuscript
      codes sources associés (compteur réciproque et acquisition d'images depuis un capteur CMOS OV6620 sur Armadeus APF9328)
      Présentation Temps Frequence sur les compteurs FPGA et asservissement sur GPS
      Présentation orale aux Rencontres Mondiales du Logiciel Libre (RMLL) 2008

    74. J.-M Friedt, G. Martin, S. Ballandras
      Wireless and Mobile Acoustic Sensor Interrogation for (Bio)Chemical Sensing and Industrial Control
      2008 IEEE International Frequency Control Symposium (Honolulu, USA, 18-21 May 2008)
      slides of the tutorial

    75. L. El Fissi, J-M. Friedt, S. Ballandras, L. Robert, F. Chérioux
      Acoustic characterization of thin polymer layers for Love mode surface acoustic waveguide
      2008 IEEE International Frequency Control Symposium (Honolulu, USA, 18-21 May 2008)
      manuscript and slides

    76. J.-M Friedt, C. Ferrandez, G. Martin, L. Moreau, M. Griselin,E. Bernard, D. Laffly, C. Marlin
      Automated high resolution image acquisition in polar regions
      12th Alpine Glaciological Meeting (Chamonix, France, 6-7 March 2008)
      European Geosciences Union (Vienna, Austria, 13-18 April 2008)
      Slides of the AGM presentation
      Poster of the AGM presentation
      Slides of the EGU presentation
      Abstract of the EGU presentation

    77. E. Mboungou, C. Mavon, J.-M. Friedt, C. Bergeon and M. Fromm
      Impact of Water Content on the Electrical Behavior of Epoxy Insulators
      IEEE Transactions on Dielectrics and Electrical Insulation, Vol 15, Issue 2, 2008, pp.311-318
      manuscript

    78. L. El Fissi, J.-M Friedt, S. Ballandras
      Modeling The Rf Acoustic Behavior Of Love-wave Sensors Loaded With Organic Layers
      2007 IEEE Ultrasonic Symposium (New York, USA)
      manuscript

    79. P. Sandoz, J.-M. Friedt, E. Carry, B.Trolard, J. Garzon Reyes
      Frequency domain characterization of tuning-fork mechanical vibrations by vision and digital image processing
      American Journal of Physics, vol. 77, issue 1, (January 2009), pp.20-26
      Java
      software required for running the lab experiment (dual channel function generator using a PC sound card, running under Windows and GNU/Linux). Requires the additional installation of Jsyn available at http://www.softsynth.com/jsyn/ for best performances.
      Demonstration routines for Matlab: run by executing Shift_demo.m.
      manuscript
      proof

    80. J.-M. Friedt, A. Masse, F. Bassignot
      Les microcontroleurs MSP430 pour les applications faibles consommations -- asservissement d'un oscillateur sur le GPS.
      GNU/Linux Magazine France 98 , October 2007
      manuscrit
      archive des programmes contenus dans l'article

    81. J.-M. Friedt
      Géolocalistion de photographies numériques
      GNU/Linux Magazine France 96 , July/August 2007
      manuscrit
      script photos_asc.php pour tracer un chemin et y ajouter les photos prises pendant le trajet -- mise à jour juillet 2014 pour API Google Maps v3.
      Conversion de nos trames GPS (corrompues) en GPX :
      grep -a ^\$GPGGA 070522short.nmea |grep -v $'\xff' | gpsbabel -i nmea,GPGGA=1,date=20070101 -f - -o gpx -F -
      Exemple1 : Paris
      Exemple2 : Nice
      Exemple3 : Besançon
      Exemple4 : RMLL07 (Amiens)
      Exemple5 : Spitsberg (Norway), including a trip to Kvadehuk (Sept. 2011) or another trip to Kvadehuk (Sept. 2013).
      Script Perl de j-g (donc a priori fonctionnel sous Windows aussi) pour ajouter a l'entete EXIF des photos numeriques la position GPS issue de la trace NMEA.
      Trois arguments sont necessaires :
      -d /dossier/de/photos/
      -n /chemin/vers/le/fichier.nmea
      -t différence de temps entre l'appareil photo et le gps en seconde, c'est "-7200" si l'appareil photo est à la bonne heure en été, -3600 en hiver

    82. J.-M. Friedt, L. El Fissi, F. Chérioux, B. Guichardaz, V. Blondeau-Patissier, S. Ballandras
      Design and Use of Wafer Level Fluidic Packaging for Surface Acoustic Wave Sensors
      IFCS/EFTF, Geneva, Switzerland, May 29 - June 1, 2007
      article for the proceedings

    83. P. Sandoz, E. Carry, J.-M. Friedt, S. Ballandras
      Digital image processing for measuring 2D vibration amplitudes with subpixel resolution: application to the quartz tuning fork
      IFCS/EFTF, Geneva, Switzerland, May 29 - June 1, 2007
      article for the proceedings
      slides of the presentation

    84. P. Sandoz, J. M. Friedt, E. Carry,
      In-plane displacement measurement with sub-pixel resolution: application to vibration characterization of a shear-force scanning probe
      SPIE Europe Optical Metrology, Munich, Germany 17-21 June 2007

    85. G. Weisenhorn, E. Pamba Capo-Chichi, J.-M. Friedt
      Communications de données et d'images issues de la carte Fox par Bluetooth
      GNU/Linux Magazine France 95 , June 2007
      manuscrit
      slides of the 2007 RMLL conference

    86. J.-M Friedt, C. Ferrandez, G. Martin, S. Guinot, E. Carry, P. Berthelot, M. Griselin
      Instrumentation pour l'acquisition automatique de données : application à la capture autonome d'images haute résolution
      Société Hydrotechnique de France (SHF), Section de Glaciologie-Nivologie
      Grenoble 15 et 16 mars 2007
      SHF, Grenoble 2007
      including the introduction by M. Griselin (>60 MB)

    87. J.-M Friedt
      Introduction à la programmation sur PlayStation Portable
      GNU/Linux Magazine France 92 , March 2007
      Manuscript
      archive des logiciels présentés dans l'article

    88. J.-M Friedt, E. Carry
      Introduction to the quartz tuning fork
      American Journal of Physics (May 2007), pp.415-422
      Manuscript
      Proof
      I have checked on a network analyzer that the 180 kHz torsional mode (Fig 2) is not observed on an actual tuning fork and is only visible in the model due to ideal electrode geometries which are not patterned practically: the fundamental (32768 Hz) and 3rd overtone (190 kHz) are well resolved though.
    89. P. Sandoz, J.-M Friedt, E. Carry
      In-plane rigid-body vibration mode characterization with a nanometer resolution by stroboscopic imaging of a microstructured pattern
      Review of Scientific Instruments, vol 78, p.023706 (02/2007)
      Manuscript

    90. C. Ferrandez, J.-M Friedt, K.P. Yew, D. Fuin, H. Guyennet
      An autonomous sensor platform including a high resolution camera for harsh environments
      Rencontres Mondiales du Logiciel Libre 2006 (Nancy)
      transparents de la présentation

    91. J.-M Friedt, E. Carry
      Prises de vues automatiques
      GNU/Linux Magazine France, Hors Série 27 (Octobre 2006)
      Manuscript
      archive gphoto cross-compilee pour architecture CRIS , a placer sur cle USB pour carte FOX de ACME.

    92. J.-M Friedt, E. Carry
      Acquisition et dissémination de trames GPS à des fins de cartographie libre
      GNU/Linux Magazine France, Hors Série 27 (Octobre 2006)
      Manuscript
      transparents de la présentation à Marmottux
      archive des programmes pour ADuC814 et exploitations des donnees NMEA.
      Google Earth track example as obtained from my GPS receiver connecter to a MultiMediaCard (MMC), and panorama pictures taken during the trip in Grenoble, France . The same trip presented with the javascript Google Maps interface which does not require the (painful) installation of Google Earth under Linux: this HTML page generated using mostly sed commands and manual editing.
      Another example of GPS data processing using a generic KML to Google Maps interface walk near Orleans and in Paris .
      Rather than simply displaying the track one can encode a physical quantity in the color of the track, the following example encodes the velocity in the color of the line during a trip in the volcanos (center of France) . The kml file (Google Earth) of the volcano track is also available for comparison.
      Finally a direct NMEA to Google Maps interface for displaying this short walk next to the Loire river (France) (and the original NMEA file for generating this path).

    93. L. Francis, J.-M. Friedt, C. Zhou, P. Bertrand
      In situ evaluation of density, viscosity and thickness of adsorbed soft layers by combined surface acoustic wave and surface plasmon resonance
      Analytical Chemistry 2006; vol. 78(12) (2006), pp. 4200-4209. DOI: ac051233h
      manuscript
      arXiv cond-mat/0311660
      link to ACS web site (requires a subscription)
    94. J.-M. Friedt, L. El Fissi,L. Robert, G. Martin, W. Daniau, S. Ballandras
      Capteurs autour des ondes de Love
      8ème Congrès Français d'Acoustique), 24-27 April 2006 (Tours, France)
      article and slides of the presentations (in French)
    95. S. Guinot, J.-M Friedt
      Stockage de masse non-volatile : un block device pour MultiMediaCard
      GNU/Linux Magazine France, Hors Série 25 (Avril 2006)
      manuscript
      archive of all Coldfire 5282 QSPI modules for MMC management for uClinux and SPI emulation on a PC parallel port.
      PCB of the MMC to PC parallel port adapter. References on the PCB are from Farnell France (4/4/2006)
      Complement to the article: rather than powering the circuit from the PS2 port as presented in the manuscript, we also powered the circuit from a USB port by connecting the two sidemost pins which provide the ground and +5V signals. The PCB also uses an MMC connector rather than an ISA connector.

    96. S. Guinot, J.-M Friedt
      La réception d’images météorologiques issues de satellites : utilisation d'un système embarqué
      GNU/Linux Magazine France, Hors Série 24 (Février 2006)
      manuscript
      archive of all Coldfire 5282 QADC modules for uClinux and some sample programs.

    97. J.-M Friedt, S. Guinot
      La réception d’images météorologiques issues de satellites : principes de base
      GNU/Linux Magazine France, Hors Série 24 (Février 2006)
      manuscript
      digital version of the images presented in this article

    98. J.-M Friedt, E. Carry
      Enregistrement de trames GPS -- développement sur microcontroleur 8051/8052 sous GNU/Linux
      GNU/Linux Magazine France, vol 81 (Février 2006)
      manuscript
      Software archive for programming and using the ADuC814+MMC+GPS receiver (9600 bauds)

    99. J.-M Friedt, S. Guinot
      Programmation et interfacage d'un microcontroleur par USB sous linux : le 68HC908JB8
      GNU/Linux Magazine France, Hors Série vol 23 (November/Décembre 2005)
      manuscript and associated archive including all 68HC908JB8 related software and programming tools. The PCB layout ( Eagle file) for the final board used in this project.

    100. J.-M Friedt, S. Guinot
      Introduction au Coldfire 5282
      GNU/Linux Magazine France, vol 75 (September 2005)
      manuscript

    101. J.-M Friedt, C. Mavon, S. Ballandras, V. Blondeau-Patissier, M. Fromm
      Quartz resonator based low-energy ionizing radiation detection
      RADECS 2005, Cap d'Agde, France, (19-23 September 2005)
      poster
      article in the proceedings

    102. J.-M. Friedt, L. A. Francis, S. Ballandras
      Thickness and Viscosity of Organic Thin Films Probed by Combined Surface Acoustic Love Wave and Surface Plasmon Resonance
      2005 IEEE International Ultrasonics Symposium (UFFC), Rotterdam, The Netherlands (18-21 September 2005)
      article for the proceedings
      slides of the presentation

    103. J.-M. Friedt, S. Alzuaga, N. Ratier, N. Vercelloni, R. Boudot, B. Guichardaz, W. Daniau, V. Laude, S. Ballandras
      Design of Asynchronous STW Resonators for Filters and High Stability Source Applications
      2005 IEEE International Ultrasonics Symposium (UFFC), Rotterdam, The Netherlands (18-21 September 2005)
      article for the proceedings
      slides of the presentation

    104. J.-M Friedt, S. Guinot
      Introduction to uClinux: low cost embedded-device development environments
      What the Hack, Liempde, The Netherlands (5-9 July 2005)
      slides
      talk (424 MB !)

    105. J.-M Friedt, S. Guinot
      Introduction to uClinux: low cost embedded-device development environments
      6eme Rencontres Mondiales du Logiciel Libre, Dijon, France (5-9 July 2005)
      slides
    106. J.-M Friedt
      Satellite image eavesdropping: a multidisciplinary science education project
      European Journal of Physics, vol 26 (August 2005) pp.969-984
      proof of the article
    107. J.-M Friedt, S. Guinot, E. Carry
      Introduction au Coldfire 5272
      GNU/Linux Magazine France, vol 73 (June 2005) pp.26-33
      manuscript and English translation (with some errors corrected)
      A couple of posters in French and in English summarising the same results.
    108. J.-M Friedt, E. Carry
      Introduction au diapason à quartz
      Bulletin de l'Union des Physiciens (December 2005)
      manuscript
      preprint

    109. J.-M Friedt, E. Carry, Z. Sadani, B. Serio, M. Wilm, S. Ballandras
      Quartz tuning fork vibration amplitude as a limitation of spatial resolution of shear force microscopes
      19th EFTF, Besançon, France (21-24 April 2005)
      slides
      article for the proceedings
    110. L. Huang, G. Reekmans, D. Saerens, J.-M Friedt, F. Frederix, L. Francis, S. Muyldermans, A. Campitelli, C. Van Hoof,
      Prostate-specific antigen immunosensing based on mixed self-assembled monolayers, camel antibodies and colloidal gold enhanced sandwich assays
      Biosensors & Bioelectronics, vol. 21, n. 3, (15 September 2005), pp. 483-490

    111. K. Bonroy, J.-M. Friedt, F. Frederix, W. Laureyn, S. Langerock, A. Campitelli, M. Sa´ra, G. Borghs, B. Goddeeris, P. Declerck
      Realization and Characterization of Porous Gold for Increased Protein Coverage on Acoustic Sensors
      Analytical Chemistry, Vol. 76, n. 15, pp. 4299-4306 (2004)
      Proof of the article
    112. C. Zhou, J.-M. Friedt, A. Angelova, K.-H. Choi, W. Laureyn, F. Frederix, L. A. Francis, A. Campitelli, Y. Engelborghs, G. Borghs
      Human Immunoglobulin Adsorption Investigated by Means of Quartz Crystal Microbalance Dissipation, Atomic Force Microscopy, Surface Acoustic Wave, and Surface Plasmon Resonance Techniques
      Langmuir, Vol. 20, n. 14, pp. 5870-5878 (June 2004)
      Proof of the article
      error: E. Gizeli mentioned to me an error whose exact expression I cannot remember. I believe this document states that the acoustic losses in an organic layer is independent on the thickness, while the loss should be related to the layer thickness as later stated by L. Francis and al. (whether the viscoelastic or gravimetric effect is predominant is related to the loss/phase shift ratio, not the insertion loss itself).

    113. L. Francis, J.-M Friedt, R. de Palma, C. Zhou, C. Bartic, P. Bertrand, A. Campitelli
      Techniques to evaluate the mass sensitivity of Love mode surface acoustic wave biosensors
      UFFC, Montreal (Canada), 24-27 August 2004, pp. 241-249
      abstract
      poster (best student poster award)

    114. L. Francis, J.-M. Friendt, C. Bartic, P. Bertrand, A. Campitelli
      A novel biosensor platform integrating Love mode acoustic wave and surface plasmon resonance for the investigation of protein layers
      Biosensors 2004, Granada (Spain), 24-26 May 2004
      abstract
      slides

    115. L. Francis, J.-M Friedt, C. Bartic, A. Campitelli
      A SU8 liquid cell for surface acoustic waves biosensors
      SPIE Photonics Europe 2004, Strasbourg (France), 26-30 Avril 2004
      poster
      article for the proceedings
    116. J.-M Friedt, F. Denis, L. Francis, C. Zhou, A. Campitelli
      Combined surface acoustic wave and surface plasmon resonance measurement of collagen and fibrinogen layers
      rejected from Langmuir
      manuscript
      arXiv physics/0310096
    117. J.-M. Friedt, R. De Palma, W. Laureyn and A. Campitelli
      Multiple wavelengths, multiple angles surface plasmon resonance measurements
      rejected from Sensors and Actuators A and Applied Optics

      text
      figure
    118. L. Francis, J.-M. Friedt, R. De Palma, P. Bertrand, A. Campitelli
      Influence of electromagnetic interferences on the gravimetric sensitivity of surface acoustic waveguides
      Eurosensors XVIII (September 13-15, 2004 - Italy - Rome),
      Sensors and Actuators A, Vol. 123-124, pp.360-369 (September 2005)
      arXiv physics/0307122
      abstract
      proof of the article

    119. J.-M Friedt
      Cartographie du potentiel électrostatique
      Bulletin de l'Union des Physiciens n.864 (May 2004), pp. 691-703
      article (in French)
    120. J.-M Friedt
      Realization of an optical profiler: introduction to scanning probe microscopy
      American Journal of Physics, Vol. 72, n. 8, pp. 1118-1125
      manuscript (April 2004)
      proof of the article
    121. F. Frederix, J.-M. Friedt, K.-H. Choi, W. Laureyn, A. Campitelli, D. Mondelaers, G. Maes, G. Borghs
      Biosensing Based on Light Absorption of Nanoscaled Gold and Silver Particles

      Analytical Chemistry 2003; 75(24); 6894-6900 (DOI: ac0346609)
    122. J.-M Friedt, L. Francis, K.-H. Choi, A. Campitelli
      The metrology of biosensors: a multiparameter approach to characterizing protein layers
      Leiden/Delft/IMEC nanotechnology workshop in Egmond (NL) 1-3 June 2003
      poster

    123. J.-M Friedt, L. Francis, G. Reekmans, R. De Palma, A. Campitelli and U.B. Sleytr
      Simultaneous surface acoustic wave and surface plasmon resonance measurements: electrodeposition and biological interactions monitoring
      Journal of Applied Physics 15 February 2004 -- Volume 95, Issue 4, pp. 1677-1680
      manuscript
      arXiv cond-mat/0307105
    124. J.-M. Friedt, K.H. Choi, F. Frederix and A. Campitelli
      Simultaneous Atomic Force Microscope and Quartz Crystal Microbalance Measurements: Methodology Validation using Electrodeposition
      Journal of the Electrochemical Society October 2003 -- Volume 150, Issue 10, pp. H229-H234
      final article
      12/2013: possible mistake pointed out by H. Perrot (LISE, UPMC) in my assumption that copper sulfate reduction is 100% efficient. He points out that I should have used a Cu counter electrode to keep the concentration of copper ions constant, and a Pt reference electrode (or even better, a true reference electrode, but that was hardly feasible in the allocated space).
    125. J.-M. Friedt, Q. Le Masne, N. Coq, M. Myotte
      Réalisation d'un profilomètre optique : introduction à la microscopie à sonde locale
      Bulletin de l'Union des Physiciens n.861 (February 2004), pp.265-277

      manuscript (in French)
      article (in French)
    126. J.-M. Friedt
      Introduction à la microbalance à quartz : aspects théoriques et experimentaux
      Bulletin de l'Union des Physiciens n.852 (March 2003), pp.429-440

      preprint (in French) (color pictures)
      article (in French)

    127. J.-M. Friedt, K.-H Choi, L. Francis, F. Frederix, A. Campitelli
      Simultaneous AFM and QCM measurements of biological and electrochemical processes
      QCM2002, Brighton, UK (24th-25th July 2002)
      abstract
      poster
    128. J.-M. Friedt, D. Gillet, M. Planat
      Simultaneous amplitude and frequency noise analysis in Chua's circuit
      International Journal of Bifurcation and Chaos (IJBC) in Applied Sciences and Engineering Vol 13, No 8, pp2301-2308 (August 2003)

      article
      text
      figures
      A few more pictures of the evolution of the amplitude return map with increasing value of the inductor, obtained after the paper was accepted for publication: graph 1 and graph 2 . Also a picture of the experimental setup
    129. K. H. Choi, J.-M Friedt, F. Frederix, ...
      Simultaneous Atomic Force Microscope and Quartz Crystal Microbalance Measurement
      Applied Physics Letters (Vol 81, No 7, 12 Aug 2002)
      article

    130. K.-H. Choi, J.-M. Friedt, W. Laureyn, F. Frederix, A. Campitelli and G. Borghs
      Investigation of protein adsorption with simultaneous measurements of atomic force microscope and quartz crystal microbalance
      JVST B (Vol 21, Issue 4, July-Aug. 2003, p.1433)
      article
    131. J.-M. Friedt, L. Francis, K.-H. Choi, A. Campitelli
      Combined Atomic Force Microscope and Acoustic Wave Devices: Application to Electrodeposition
      49th AVS meeting (November 4-8, 2002, Denver, Colorado)
      JVST A (Vol 21, Issue 4, July-Aug. 2003, p.1500)
      abstract
      slides
      proof of the article
      electronic circuit of the potentiostat used in this work

    132. J.-M Friedt, K. H. Choi, L. Francis, A. Campitelli
      Simultaneous Atomic Force Microscope and Quartz Crystal Microbalance measurements: interactions and displacement field of a QCM
      Japanese Journal of Applied Physics (Vol 41, No 6A (June 2002), pp.3974-3977)
      article
      A small tutorial on modulef I wrote while performing the simulation presented in this article.
    133. J.-M. Friedt, K.-H. Choi, F. Frederix, L. Francis, A. Campitelli, G. Borgs
      Simultaneous AFM and QCM measurements: application to the adsorption of proteins on metallic surfaces,
      IVth Annual Linz Winter Workshop, Linz, Austria (February 1st-4th 2002)
      slides

    134. Projet Aurore
      Films accélérés : méthodes d'acquisition et traitements
      Bulletin de l'Union de Physiciens n.842 (Mars 2002), p.543

      preprint (in French) (color pictures)
      article (in French)

    135. J.-M Friedt, C. Thiébaud
      Micro-nanomanipulation à distance avec rétroaction visuelle et tactile sous MEB par utilisation d'un levier d'AFM piézorésistif [in French]
      NMT (2000)

      article (in French)
    136. Lancer d'un ballon sonde
      Bulletin de l'Union de Physiciens (Juillet-Aout-Septembre 2000), p.1317

      article (in French)
    137. J.-M. Friedt, O. Teytaud, M. Planat
      Learning from noise in Chua's oscillator
      16 th International Conference on Noise in Physical Systems and 1/f Fluctuations (ICNF 2001), Gainesville, Floride, USA (22-25 Octobre 2001) pp.491-496
      article

    138. O. Teytaud, J.-M. Friedt, M. Planat
      Neural network based prediction of Chua's chaotic circuit frequency -- possible extension to quartz oscillators
      15 th EFTF, Neuchatel, Suisse (6-8 Mars 2001), proceedings pp.129-133
    139. J.-M. Friedt, O. Teytaud, D. Gillet, M. Planat
      Simultaneous amplitude and frequency noise analysis in Chua's circuit -- neural network based prediction and analysis
      VIII. Van Der Ziel symposium on quantum 1/f noise ..., St. Louis, Missouri, USA (5-6 Juin 2000)
      abstract
      article (to be published in proceedings ?)
    140. Jean-Michel Friedt, Michel Planat
      Mesures instantanées en fréquence et en amplitude dans le circuit de Chua
      Rencontre du non-linéaire 2000 (Paris, France)
      abstract (French)
      poster (French)
      article (in French)
    141. Jean-Michel Friedt, Daniel Gillet, Michel Planat
      Simultaneous amplitude and frequency noise analysis in Chua's circuit
      14th EFTF, Turin, Italie (14-16 Mars 2000)
      article
      abstract
      poster
      All data (signal period and amplitude) obtained from my implementation of Chua's circuit and used in these articles are available upon request to friedtj_at_free.fr