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Oral presentations

Oral presentations

(only first authored presentations are listed below)

  1. Hobiger T., Amagai J., Aida M., Narita H., Gotoh T., A low-cost GNSS-R system based on software-defined-radio, SDR’11, Nov. 19-Dec.2, 2011, Washington D.C., USA.
  2. ホビガートーマス, 市川隆一，関戸衛, 花土ゆう子, 小山泰弘, VLBI2010技術を用いた時刻・周波数比較の可能性, 第116回日本測地学会講演会, 平成23年10月26−28日、高山.
  3. Hobiger T., Koyama Y., Hanado Y., Ichikawa R., Amagai J., Sekido M., Boehm J., Sun J., On the potential of VLBI2010 for time and frequency transfer, Journées 2011, Sep. 19-21, 2011, Vienna, Austria.
  4. Hobiger T., Ichikawa R., Kondo T., Koyama Y., Benefits of ray-traced troposphere delay corrections for space geodetic applications, AOGS 2011, Aug. 8-12, 2011, Taipei, Taiwan.
  5. Hobiger T., Koyama Y., Hanado Y., Ichikawa R., Amagai J., Sekido M., Boehm J., Sun J., On the feasibility to utlitze space-geodetic techniques for advanced time and frequency transfer, BIPM Workshop on Advanced Time and Frequency Transfer Techniques, Jun. 28-29, 2011, BIPM, Paris, France.
  6. ホビガー トーマス, 宇宙測地技術における電波伝播の高精度補正, 2011年度坪井賞受賞講演, 幕張, 平成23年5月23日.
  7. ホビガー トーマス, 雨谷 純, 相田　政則, 後藤 忠広, ソフトウェア無線機を用いたGNSS-R環境計測手法, 日本地球惑星科学連合2011年大会, 平成22年5月23日, 幕張.
  8. Hobiger T., New approaches for space geodesy – atmospheric delay corrections, parallel computing and software defined radio, University of Hawaii, Apr. 20, 2011, Honolulu, USA.
  9. Hobiger T., Kinoshita Y., Furuya M., Ichikawa R., Koyama Y., Kondo T., InSAR troposphere delay corrections from numerical weather models – status quo and future directions, Apr.3-8, 2011, Vienna, Austria.
  10. Hobiger T., Amagai J., Aida M., Koyama Y., Gotoh T., A low-cost GNSS-R system based on software-defined-radio, European Geoscience Union meeting, Apr.3-8, 2011, Vienna, Austria.
  11. Hobiger T., Analysis issues of Intensive sessions: Low latency sessions and implications of analysis and publications of results, 12th IVS analysis workshop, Mar. 31, 2011, Bonn Germany.
  12. Hobiger T., Sekido M., Otsubo T., Gotoh T., Kubooka T., Takiguchi H., Takeuchi H., VLBI analysis with c5++ – status quo and outlook, 20 EVGA meeting, Mar. 29-30, 2011, Bonn, Germany.
  13. ホビガー トーマス, 雨谷 純, 相田　政則, 後藤 忠広, ソフトウェア無線機を用いたGNSS-R環境計測手法, 10th IVS TDC Symposium, Feb. 23, 2011, Kashima, Japan.
  14. ホビガー トーマス, 大坪俊通, 後藤忠広, 関戸衛, 久保岡俊宏, 瀧口博士, c5++を用いたUT1自動解析について, 第113回日本測地学会講演会, 平成２２年１１月８－１０日, 京都.
  15. Hobiger T., Sekido M., Kurihara S., Kokado K., Nozawa K., Haas R., Koyama Y., Kondo T., Takiguchi H., Ritakari J., Wagner J., Uunila M., Molera G., Automated processing of ultra-rapid VLBI UT1 experiments, 2010 Asia-Pacific Radio Science Conference” (AP-RASC’10), Sep. 22-26, 2010, Toyama, Japan.
  16. Hobiger T., Gotoh T., Amagai　J., Kondo T., Koyama Y., GPUGPS – a GPS receiver running on an off-the-shelf graphics card, 2010 Asia-Pacific Radio Science Conference” (AP-RASC’10), Sep. 22-26, 2010, Toyama, Japan.
  17. Hobiger T., Ichikawa R., Koyama Y., Kondo T., Troposphere delay corrections for space applications based on the Kashima Ray-tracing Tools (KARAT), 2010 Asia-Pacific Radio Science Conference” (AP-RASC’10), Sep. 22-26, 2010, Toyama, Japan.
  18. Hobiger T., Gotoh T., Amagai J., Fujieda M., Aida M., TWSTFT using DPN signals, 18th Meeting of the CCTF Working Group on TWSTFT Sep. 16-17, 2010, Beijing, China
  19. ホビガートーマス, 市川隆一, 小山泰弘, 近藤哲朗, 宇宙測地技術の大気遅延除去を目的とした大気屈折４次元構造のハイブリッド推定, 日本地球惑星科学連合2010年大会, 平成22年5月23－28日, 幕張
  20. Hobiger T., Ichikawa R., Koyama Y., Kondo T., Ray-tracing and high resolution numerical weather models, Workshop on Ray-Tracing for Space Geodetic Techniques, April 29-30, 2010, Vienna, Austria.
  21. Hobiger T., Gotoh T., Amagai J., Kondo T., Koyama Y., GPU based GNSS software receivers – status quo and plans, 9th IVS TDC Symposium, Mar. 12, 2010, Kashima, Japan.
  22. Hobiger T., Otsubo T., Gotoh T., Kubooka T., Sekido M., Takiguchi H., Takeuchi H., Automated processing of VLBI experiments with c5++, 9th IVS TDC Symposium, Feb. 18, 2009, Kashima, Japan.
  23. Hobiger T., Kimura M., Takefuji K., Oyama T., Koyama Y., Kondo T., Gotoh T., Amagai J. GPU Based Software Correlators – Perspectives for VLBI2010, Sixth IVS General Meeting, Feb 6-13, 2010, Hobart, Tasmania, Australia.
  24. Hobiger T., Ichikawa R., Koyama Y., Kondo T., Ray-traced troposphere slant delays from numerical weather models as corrections on the observation level –status and outlook, GGOS Unified Analysis Workshop, Dec. 11-12, 2009, San Francisco, CA, USA.
  25. ホビガートーマス, 木下陽平, 市川隆一, 清水慎吾, 古屋正人, 小山泰弘, 近藤哲朗, InSARにおける高精度大気伝搬遅延補正の重要性について, 第112回日本測地学会講演会, 平成２１年１１月４－６日, つくば.
  26. Hobiger T., Gotoh T., Amagai J., Kondo T., Koyama Y., A real-time GPS software receiver running on the GPU, Harvard-Riken Joint Symposium: Application of GPU Computation to Brain Science, Quantum Science, Astronomy, Fluid Dynamics and other sciences, August 28-29, 2009, Tokyo, Japan.
  27. Hobiger T., Furuya M., Kinoshita Y., Ichikawa R., Koyama Y., Ray-traced troposphere slant delays from numerical weather models as corrections for InSAR, IEEE International Geoscience and Remote Sensing Symposium, July 11-17, 2009, Cape Town, South Africa.
  28. Hobiger T., Gotoh T., Amagai J., Kondo T., Koyama Y., Development of a GPS software receiver running on an off-the-shelf graphics board, 7th Meeting of the Society for Precise Frequency Measurement, June 17th, 2009, Koganei, Japan.
  29. Hobiger T., Ichikawa R., Shimada S., Shimizu S., Koyama Y., Kondo T., Numerical Weather Models for the Correction of Troposphere Delays of Space Geodetic Techniques – Prerequisites and Applications, Meteorological Society of Japan – Spring Meeting 2009, May 28-31, 2009, Tsukuba International Congress Center, Tsukuba, Japan.
  30. Hobiger T., Shimada S., Shimizu S., Ichikawa R., Computation of GNSS troposphere slant delay corrections based on fine-mesh numerical weather models, Japan Geoscience Union Meeting, May 16-21, 2009 Makuhari Messe, Chiba, Japan.
  31. Hobiger T., Shimada S., Shimizu S., Ichikawa R., Fine-mesh numerical weather models for modeling of GNSS troposphere slant delays, EGU General Assembly 2009, Apr. 20-24, 2009, Vienna, Austria.
  32. Hobiger T., Ichikawa R., Koyama Y., Kondo T., Computation of troposphere slant delays on a GPU, EGU General Assembly 2009, Apr. 20-24, 2009, Vienna, Austria.
  33. Hobiger T., Gotoh T., Amagai J., Koyama Y., Kondo T., A GPU based multi-channel real-time GNSS software receiver, IEICE General conference, Mar. 17-20, 2009, Matsuyama, Japan.
  34. Hobiger T., Ichikawa R., Koyama Y., Kondo T., Accelerating the computation of ray-traced troposphere delays by GPUs, 8th IVS TDC Symposium, Feb. 18, 2009, Kashima, Japan.
  35. Hobiger T., Ichikawa R., Koyama Y., Kondo T., Kashima Ray-tracing Service (KARATS) – On-line provision of total troposphere slant delay corrections for East Asian sites, International Symposium on GPS/GNSS 2008, Nov. 11-14, 2008, Tokyo, Japan
  36. Hobiger T., Ichikawa R., Koyama Y., Kondo T., Kashima Ray-tracing Service (KARATS) – Online provision of ray-traced troposphere slant delays for space-geodetic applications in East Asia, Japan Geodetic Society Meeting, Oct. 22-24, 2008, Hakodate, Japan.
  37. Hobiger T., Ichikawa R., Takasu T., Koyama Y., Kondo T., Ray-traced troposphere slant delays for precise point positioning, Japan Geoscience Union Meeting, May 25-30, 2008 Makuhari Messe, Chiba, Japan.
  38. Hobiger T., Ichikawa R., Takasu T., Koyama Y., Kondo T., Ray-traced troposphere slant delays for precise point positioning, EGU General Assembly 2008, Vienna, Austria (invited).
  39. Hobiger T., Ichikawa R., Ray-traced tropospheric total slant delays for GNSS processing, Discussion meeting at the Japanese Meteorological Agency, Feb. 18, 2008, Tokyo, Japan.
  40. Hobiger T., Sekido M., Koyama Y., Kondo T., Integer least-squares adjustment for VLBI, 7th IVS TDC Symposium, Feb. 15, 2008, Kashima, Japan.
  41. Hobiger T., Ichikawa R., Hatanaka Y., Yutsudo T., Iwashita C., Miyahara B., Koyama Y., Kondo T., Ray-traced tropospheric total slant delays for GNSS processing, AGU Fall meeting, December 10-14, 2007, San Francisco, CA, USA.
  42. Hobiger T., Ichikawa R., Koyama Y., Kondo T., Constrained simultaneous algebraic reconstruction technique (CSART) a new and simple algorithm for ionospheric tomography, Japan Geoscience Union Meeting, May 19-24, 2007 Makuhari Messe, Chiba, Japan.
  43. Hobiger T., Ichikawa R., Koyama Y., Kondo T., Fast ray-tracing for real-time positioning applications using numerical weather models, Japan Geoscience Union Meeting, May 19-24, 2007 Makuhari Messe, Chiba, Japan
  44. Hobiger T., Kondo T., Koyama Y., Constrained simultaneous algebraic reconstruction technique (CSART) a new and simple algorithm for ionospheric tomography EGU General Assembly 2007, Vienna, Austria.
  45. Hobiger T., Ichikawa R., Koyama Y., Kondo T., KAshima RAy-Tracing Service (KARATS) – Fast ray-tracing through numerical weather models for real-time positioning applications in East Asia, 18th European VLBI for Geodesy and Astrometry (EVGA) Working Meeting, April 12-13, 2007, Vienna, Austria.
  46. Hobiger T., Ichikawa R., Koyama Y., Kondo T., KAshima RAy-Tracing Service (KARATS) – Fast ray-tracing through numerical weather models for real-time positioning applications, Working and discussion meeting at Geodetic Survey Institute of Japan, March 22, 2007, Tsukuba, Japan (invited).
  47. Hobiger T., Ichikawa R., Koyama Y., Kondo T., KAshima RAy-Tracing Service (KARATS) – Fast ray-tracing through numerical weather models for real-time positioning applications, 6th IVS TDC Symposium, March 3, 2007, Kashima, Japan.
  48. Hobiger T., Kondo T., Koyama Y., Probing the ionosphere by means of VLBI, VLBI Consortium Symposium, December 25 – 27, 2006, Kagoshima, Japan.
  49. Hobiger T., Kondo T., Schuh H., Detection of short period ionosphere variations by VLBI, European Geosciences Union, General Assembly, 2 – 7 April 2006, Vienna, Austria.
  50. Hobiger T., Kondo T., Schuh H., VLBI as a tool to probe the ionosphere, European Geosciences Union, General Assembly, 24 – 29 April 2005, Vienna, Austria.
  51. Hobiger T., Kondo T., Schuh H., Estimation of absolute TEC values by VLBI, 16th Working Meeting on European VLBI for Geodesy and Astrometry, 21-23 April, 2005, Noto, Italy.
  52. Hobiger T., Observing the ionosphere by means of VLBI, VERA workshop, January 19-20, 2005, National Astronomical Observatory of Japan, Mitaka, Tokyo, Japan (invited).
  53. Hobiger T., Schuh H., How VLBI Contributes to Ionospheric Research, Third IVS General Meeting February 9-11, 2004, Ottawa, Canada.
  54. Hobiger T., Aufbau und Bestimmung der Ionosphaere, Trends in der oesterreichischen Forschung – Vortragsreihe, 8. Oesterreichischer Geodaetentag, 8. – 11. April 2003, Wels (invited).
  55. Hobiger T., J. Boehm,S. Todorova, H. Schuh, The project “VLBIonos” – how VLBI contributes to ionospheric research, 16th Working Meeting on European VLBI for Geodesy and Astrometry, 9-10 May 2003, Leipzig, Germany.
  56. Hobiger T., Boehm J., Schuh H., VLBIONOS – Probing the ionosphere by means of very long baseline interferometry, IUGG 2003 General Assembly, June 30 – July 11 2003, Sapporo, Japan.
  57. Hobiger T., Boehm J., Schuh H., Determination of Ionospheric Parameters by Geodetic VLBI, Second IVS General Meeting, February 4-7, 2002,Tsukuba, Japan

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