Koyama Yasuhiro 小山泰弘

… Alternative Names

KOYAMA Yasuhiro 小山泰弘

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Researcher Number	30359054
Other IDs
Affiliation (Current)	2025: 国立研究開発法人情報通信研究機構, 量子ICT協創センター, 室長
Affiliation (based on the past Project Information) *help	2012: (独)情報通信研究機構, 国際推進部門国際連携研究室, 室長 2011: (独)情報通信研究機構, 国際推進部門・国際連携研究室, 室長 2010: 独立行政法人情報通信研究機構, 新世代ネットワーク研究センター光・時空標準グループ, グループリーダー 2009: 独立行政法人情報通信研究機構, 新世代ネットワーク研究センター・光・時空標準グループ, グループリーダー 2005: NICT, Department of Radio measurement, group leader, 電磁波計測部門, グループリーダー … More 2005: 通信総合研究所, 電磁波計測部門, グループリーダー 2004: 情報通信研究機構, 鹿島宇宙通信研究センター, 主任研究員 2003: 通信総合研究所, 鹿島宇宙通信センター, 主任研究員 2002: Communications Research Laboratory, Senior Researcher, 鹿児宇宙通信センター, 助教授 Less
Review Section/Research Field	Except Principal Investigator Solid earth and planetary physics / 固体地球物理学 / Social systems engineering/Safety system
Keywords	Except Principal Investigator VLBI / SELENE / Lunar gravity field / ドプラー / 月重力場 / 相対VLBI / dichotomy of the Moon / Lunar explorer / Gravity anomaly / Doppler frequency … More / 内部構造 / 月裏側 / 4-Wayドプラー / 月 / 月の2分性 / 月探査機 / 重力異常 / Orbit Determination / 4-way Doppler / Moon / 軌道推定 / スピン / 位置認証 / 周波数標準 / 空間測位 / 相間処理 / 地上波デジタル放送 / GPS / 相関処理 / GNSS / 時空認証 / 信頼性工学 Less

The developments of space-time information certification system using VLBI correlation processing
- Principal Investigator
  
  ICHIKAWA Ryuichi
- Project Period (FY)
  2009 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Social systems engineering/Safety system
- Research Institution
  National Institute of Information and Communications Technology
Estimation of gravity anomaly in the lunar far-side from VLBI and 4-Way Doppler data
- Principal Investigator
  
  KAWANO Nobuyuki
- Project Period (FY)
  2003 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Solid earth and planetary physics
- Research Institution
  National Astronomical Observatory of Japan
An accurate measurements of lunar gravity fields by the differential VLBI technique
- Principal Investigator
  
  KAWANO Nobuyuki
- Project Period (FY)
  1999 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  固体地球物理学
- Research Institution
  National Astronomical Observatory

All 2012 2011 2010 2009 2005 2004 2003

All Journal Article Presentation Patent

[Journal Article] VLBI 相関処理技術を利用した時空情報正当性検証に関する基礎研究(第3年次)2012
- Author(s)
  高島和宏, 市川隆一, 高橋冨士信, 大坪俊通, 小山泰弘, 関戸衛, 瀧口博士, ホビガートーマス
- Journal Title
  
  国土地理院平成23 年度調査研究年報
  
  Pages: 116-119
- URL
  http://www.gsi.go.jp/REPORT/TECHNICAL/H23kenkyu-nenpo-h23_list.html
- Data Source
  KAKENHI-PROJECT-21241043
[Journal Article] Impact of Atmospheric Delay Reduction using KARAT on GPS/PPP Analysis、Geodesy for Planet Earth2012
- Author(s)
  Ryuichi Ichikawa, Thomas Hobiger, Yasuhiro Koyama, Tetsuro Kondo
- Journal Title
  
  International Association of Geodesy Symposia
  
  Volume: 136巻 Pages: 781-787
- DOI
  10.1007/978-3-642-20338-1_98
- ISBN
  9783642203374, 9783642203381
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21241043
[Journal Article] VLBI 相関処理技術を利用した時空情報正当性検証に関する基礎研究(第2年次)2011
- Author(s)
  高島和宏, 市川隆一, 高橋冨士信, 大坪俊通, 小山泰弘, 関戸衛, 瀧口博士, ホビガートーマス
- Journal Title
  
  国土地理院平成22 年度調査研究年報
- URL
  http://www.gsi.go.jp/REPORT/TECHNICAL/H22kenkyu-nenpo-h22_list.html
- Data Source
  KAKENHI-PROJECT-21241043
[Journal Article] 電波を使った位置情報認証2011
- Author(s)
  王立華,田中秀磨,市川隆一,岩間司, 小山泰弘
- Journal Title
  
  第34 回情報理論とその応用シンポジウム SITA2011
- Data Source
  KAKENHI-PROJECT-21241043
[Journal Article] On the importance of accurately ray-traced troposphere corrections for Interferometric SAR data2010
- Author(s)
  Thomas Hobiger, Youhei Kinoshita, Shingo Shimizu, Ryuichi Ichikawa, Masato Furuya, Tetsuro Kondo, Yasuhiro Koyama
- Journal Title
  
  Journal of Geodesy
  
  Volume: 84巻 Issue: 9 Pages: 537-546
- DOI
  10.1007/s00190-010-0393-3
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21241043
[Journal Article] A GPU based real-time GPS software receiver2010
- Author(s)
  Thomas Hobiger, Tadahiro Gotoh, Jun Amagai, Yasuhiro Koyama, Tetsuro Kondo
- Journal Title
  
  GPS Solutions
  
  Volume: 14巻 Pages: 207-219
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21241043
[Journal Article] Improving GPS positioning estimates during extreme weather situations by the help of fine-mesh numerical weather models2010
- Author(s)
  Thomas Hobiger, Seiichi Shimada, Shingo Shimizu, Ryuichi Ichikawa, Yasuhiro Koyama, Tetsuro, Kondo
- Journal Title
  
  Journal of Atmospheric and Solar-Terrestrial Physics
  
  Volume: 72巻 Issue: 2-3 Pages: 262-270
- DOI
  10.1016/j.jastp.2009.11.018
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21241043
[Journal Article] Computation of troposphere slant delays on a GPU2009
- Author(s)
  Thomas Hobiger, Ryuichi Ichikawa, Yasuhiro Koyama, Tetsuro Kondo
- Journal Title
  
  IEEE Transactions of Geoscience and Remote Sensing
  
  Volume: 47巻 Issue: 10 Pages: 3313-3318
- DOI
  10.1109/tgrs.2009.2022168
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21241043
[Journal Article] Research and Developments for e-VLBI Utilizing Global High Speed Network Connections,2005
- Author(s)
  Yasuhiro Koyama
- Journal Title
  
  Journal of National Institute of Information and Communications Technology 52
  
  Pages: 131-139
- Data Source
  KAKENHI-PROJECT-15340151
[Journal Article] Application of PZT telescope to Insitu Lunar Orientation Measurement (ILOM).2004
- Author(s)
  Hanada H., K.Heki, H.Araki, K.Matsumoto, H.Noda, N.Kawano, T.Tsubokawa, T.Tsuruta, S.Tazawa, K.Asari, Y.Kono, T.Yano, N.Gouda, T.Iwata, T.Yokoyama, H.Kanamori, K.Funazaki, T.Miyazaki
- Journal Title
  
  IAG Symposia 128
  
  Pages: 163-168
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15340151
[Journal Article] Accurate Astrometry of 22 Southern Hemisphere Radio Sources2004
- Author(s)
  John E.Reynolds, Yasuhiro Koyama etc.
- Journal Title
  
  Astronomical Journal 127
  
  Pages: 1791-1795
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15340151
[Journal Article] Geodetic VLBI Experiments with the K5 System2004
- Author(s)
  Yasuhiro Koyama
- Journal Title
  
  NASA/CP-2004-212255
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15340151
[Journal Article] Geodetic VLBI Experiments with the K5 System.2004
- Author(s)
  Yasuhiro Koyama
- Journal Title
  
  NASA/CP-2004-212255
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340151
[Journal Article] Accurate Astrometry of 22 Southern Hemisphere Radio Sources2004
- Author(s)
  John E.Reynolds, Y.Koyama
- Journal Title
  
  Astronomical Journal 127
  
  Pages: 1791-1795
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340151
[Journal Article] Precise Positioning of spacecrafts by multi-frequency VLBI2003
- Author(s)
  Kono Yusuke, H.Hanada, J.Ping, Y.Koyama, et al.
- Journal Title
  
  Earth Planets Space 55
  
  Pages: 581-589
- NAID
  10011943654
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340151
[Journal Article] Precise Positioning of spacecrafts by multi-frequency VLBI.2003
- Author(s)
  Kono Yusuke, H.Hanada, J.Ping, Y.Koyama, Y.fukuzaki, N.Kawano
- Journal Title
  
  Earth Planets Space 55
  
  Pages: 581-589
- NAID
  10011943654
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15340151
[Patent] 位置情報認証方法2012
- Inventor(s)
  王立華、田中秀麿、小山泰弘、市川隆一、岩間司
- Industrial Property Rights Holder
  同上
- Patent Publication Number
  2012-156636
- Acquisition Date
  2012-08-16
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] VLBI 相関処理技術を利用した時空情報正当性検証に関する基礎研究2012
- Author(s)
  高島和宏, 市川隆一, 高橋冨士信, 大坪俊通, 小山泰弘, 関戸衛, 瀧口博士, ホビガートーマス、高島和宏, 市川隆一, 高橋冨士信, 大坪俊通, 小山泰弘, 関戸衛, 瀧口博士, ホビガートーマス
- Organizer
  第56回宇宙科学技術連合講演会
- Place of Presentation
  大分県別府市別府国際コンベンションセンター
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] Development of the space-time information justification verification system of the GNSS satellite using VLBI correlation2012
- Author(s)
  Toru1 KAJIWARA, Fujinobu TAKAHASHI, Kazuhiro TAKASHIMA, Ryuichi ICHIKAWA, Toshimichi OTSUBO, Yasuhiro KOYAMA, Mamoru SEKIDO, Thomas HOBIGER, Hiroshi TAKIGUCHI
- Organizer
  地球惑星科学連合2012 年大会
- Place of Presentation
  千葉県千葉市幕張メッセ
- Year and Date
  2012-05-25
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] VLBI 相関処理技術を利用した時空情報正当性検証システムの開発2011
- Author(s)
  高島和宏, 市川隆一, 高橋冨士信, 大坪俊通, 小山泰弘, 関戸衛, 瀧口博士, ホビガートーマス
- Organizer
  日本地球惑星科学連合2011 年大会
- Place of Presentation
  千葉県、幕張メッセ国際会議場
- Year and Date
  2011-05-24
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] 時空情報正当性検証データ取得ユーザ端末の開発2011
- Author(s)
  高島和宏, 市川隆一, 高橋冨士信, 大坪俊通, 小山泰弘, 関戸衛, 瀧口博士, ホビガートーマス
- Organizer
  第10回IVS技術開発センターシンポジウム
- Place of Presentation
  NICT 鹿島宇宙技術センター(茨城県)
- Year and Date
  2011-02-23
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] 距離基準超小型VLBI システムによる測地観測成果2010
- Author(s)
  市川隆一,石井敦利,瀧口博士,岳藤一宏,氏原秀樹,小山泰弘,近藤哲朗, 栗原忍、三浦優司, 谷本大輔
- Organizer
  第114回日本測地学会講演会
- Place of Presentation
  京都大学(京都府)
- Year and Date
  2010-11-08
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] Atmospheric Delay Reduction using Ray Tracing Technique through Meso-scale Numerical Weather Data for Space Geodesy2010
- Author(s)
  Ryuichi Ichikawa, Thomas Hobiger, Yoshinori Shoji, Yasuhiro Koyama, Tesuro Kondo
- Organizer
  European Geosciences Union General Assembly 2010
- Place of Presentation
  ウィーン国際会議場(オーストリア)
- Year and Date
  2010-05-06
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] Omnidirectional Reverse Parabolic Reflector Antenna2010
- Author(s)
  Koyama Y.
- Organizer
  AP-RASC 2010
- Place of Presentation
  富山国際会議場(富山県)
- Year and Date
  2010-09-25
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] Troposphere slant delay corrections from numerical weather models - status and outlook2010
- Author(s)
  Thomas Hobiger, Ryuichi Ichikawa, Yasuhiro Koyama, Tesuro Kondo
- Organizer
  European Geosciences Union General Assembly 2010
- Place of Presentation
  ウィーン国際会議場(オーストリア)
- Year and Date
  2010-05-06
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] Fundamental research about the space-time information certification using VLBI correlation technique2009
- Author(s)
  Kazuhiro Takashima, Ryuichi Ichikawa, Fujinobu Takahashi, Toshimichi Otsubo, Yasuhiro Koyama, Mamoru Sekido, Hiroshi Takiguchi, Thomas Hobiger
- Organizer
  IVS e-VLBI workshop
- Place of Presentation
  スペイン、マドリッド、スペイン国立天文台
- Year and Date
  2009-06-22
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] 次世代高速度A/DサンプラADS3000+のフリンジテスト2009
- Author(s)
  岳藤一宏, 小山泰弘, 竹内央
- Organizer
  日本天文学会秋季年会
- Place of Presentation
  山口県山口市山口大学
- Year and Date
  2009-09-16
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] Computation of troposphere slant delays on a GPU2009
- Author(s)
  Thomas Hobiger, Ryuichi Ichikawa, Yasuhiro Koyama, Tesuro Kondo
- Organizer
  EGU General Assembly 2009
- Place of Presentation
  オーストリア、ウィーン、ウィーン国際センター
- Year and Date
  2009-04-20
- Data Source
  KAKENHI-PROJECT-21241043
[Presentation] VLBI相関処理技術を利用した時空情報正当性検証に関する基礎研究2009
- Author(s)
  高島和宏, 市川隆一, 高橋冨士信, 大坪俊通, 小山泰弘, 関戸衛, 瀧口博士, ホビガートーマス
- Organizer
  第112回日本測地学会講演会
- Place of Presentation
  茨城県つくば市産業技術総合研究所
- Year and Date
  2009-11-04
- Data Source
  KAKENHI-PROJECT-21241043

1. HANADA Hideo (60132677)

# of Collaborated Projects: 2 results

# of Collaborated Products: 3 results
2. KAWANO Nobuyuki (10186116)

# of Collaborated Projects: 2 results

# of Collaborated Products: 2 results
3. NAMIKI Noriyuki (50274428)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. KATOU Takaji (10249930)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. ICHIKAWA Ryuichi (40359055)

# of Collaborated Projects: 1 results

# of Collaborated Products: 17 results
6. SEKIDO Mamoru (60359057)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
7. HOBIGER Thomas (20533798)

# of Collaborated Projects: 1 results

# of Collaborated Products: 16 results
8. TAKIGUCHI Hiroshi (20435788)

# of Collaborated Projects: 1 results

# of Collaborated Products: 9 results
9. TAKASHIMA Kazuhiro (30510937)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
10. TAKAHASHI Fujinobu (50358818)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
11. OHTSUBO Toshimichi (70358943)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
12. AMAGAI Jun (30358949)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
13. YASUDA Shigeru (30253909)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. KONO Yusuke (00370106)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
15. YOSHIKAWA Makoto (70311173)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 林理三雄 (70244259)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Koyama Yasuhiro 小山 泰弘

KOYAMA Yasuhiro 小山 泰弘

Research Projects

Research Products

Co-Researchers

The developments of space-time information certification system using VLBI correlation processing

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Estimation of gravity anomaly in the lunar far-side from VLBI and 4-Way Doppler data

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

An accurate measurements of lunar gravity fields by the differential VLBI technique

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] VLBI 相関処 理技術を利用した時空情報正当性検証に 関する基礎研究(第3年次)2012

Author(s)

Journal Title

URL

Data Source

[Journal Article] Impact of Atmospheric Delay Reduction using KARAT on GPS/PPP Analysis、Geodesy for Planet Earth2012

Author(s)

Journal Title

DOI

ISBN

Data Source

[Journal Article] VLBI 相関処 理技術を利用した時空情報正当性検証に 関する基礎研究(第2年次)2011

Author(s)

Journal Title

URL

Data Source

[Journal Article] 電波を使った位置情報認証2011

Author(s)

Journal Title

Data Source

[Journal Article] On the importance of accurately ray-traced troposphere corrections for Interferometric SAR data2010

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A GPU based real-time GPS software receiver2010

Author(s)

Journal Title

Data Source

[Journal Article] Improving GPS positioning estimates during extreme weather situations by the help of fine-mesh numerical weather models2010

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Computation of troposphere slant delays on a GPU2009

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Research and Developments for e-VLBI Utilizing Global High Speed Network Connections,2005

Author(s)

Journal Title

Data Source

[Journal Article] Application of PZT telescope to Insitu Lunar Orientation Measurement (ILOM).2004

Author(s)

Journal Title

Description

Data Source

[Journal Article] Accurate Astrometry of 22 Southern Hemisphere Radio Sources2004

Author(s)

Journal Title

Description

Data Source

[Journal Article] Geodetic VLBI Experiments with the K5 System2004

Author(s)

Journal Title

Description

Koyama Yasuhiro 小山泰弘

KOYAMA Yasuhiro 小山泰弘

[Journal Article] VLBI 相関処理技術を利用した時空情報正当性検証に関する基礎研究(第3年次)2012

[Journal Article] VLBI 相関処理技術を利用した時空情報正当性検証に関する基礎研究(第2年次)2011

[Presentation] VLBI 相関処理技術を利用した時空情報正当性検証に関する基礎研究2012

[Presentation] VLBI 相関処理技術を利用した時空情報正当性検証システムの開発2011