Research on Electromagnetic Wave Propagation Estimation for Constructing Ubiquitous Information Communication Networks

• Project/Area Number: 20360176
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Chuo University
• Principal Investigator: SHIRAI Hiroshi Chuo University, 理工学部, 教授 (00196594)
• Co-Investigator(Kenkyū-buntansha): MAKINO Mitsunori 中央大学, 理工学部, 教授 (90238890) ; SATO Ryoichi 新潟大学, 人文社会・教育科学系, 准教授 (00293184)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000); Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2009: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2008: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
• Keywords: 電磁波伝搬 / SBR法 / 可視化 / 高周波漸近解析 / FDTD法 / 雷磁波伝搬

Research Abstract

Fast and efficient estimation/visualization system has been developed for analyzing high frequency electromagnetic wave propagation in an urban environment with complex building structures. The developed system includes i) reliable measurement method for estimating electrical parameters of building materials ; ii) an analytical method for considering the multiple internal bouncing effect inside the building walls ; iii) a numerical method for calculating the scattering field due to the complicated structures such as human bodies; and iv) a fast visualization system for displaying electromagnetic field variation in a three dimensional space.

Research Products

• [Journal Article] Modification of Ray-launching Method For Accurate 2D Indoor Propagation Analysis (2011)
  • Author(s): Ryoichi Sato, Hiroshi Shirai
  • Journal Title: IEICE Transaction on Electronics Vol.E94-C, No.1 Pages: 55-58
  • NAID: 10027984182
  • Peer Reviewed
• [Journal Article] Modification of Ray-launching Method For Accurate 2D Indoor Propagation Analysis (2011)
  • Author(s): Ryoichi Sato
  • Journal Title: IEICE Trans.Electronics. Volume: E94-C Pages: 55-58
  • NAID: 10027984182
  • Peer Reviewed
• [Journal Article] FDTD Cell Size Study for SAR Evaluation for Human Head Exposure to Near EM Field (2011)
  • Author(s): Hiroshi Shirai
  • Journal Title: Proceedings of 2011 Progress In Electromagnetics Research Symposium in Marrakesh Volume: (CDROM)
  • Peer Reviewed
• [Journal Article] An Efficientry Ray Tracing with LOD Control by Head Tracking and Human Eyesight (2011)
  • Author(s): Yosuke Nara
  • Journal Title: Proceedings of International Workshop on Advanced Image Technology 2011 Volume: (CDROM)
  • Peer Reviewed
• [Journal Article] Parameter Variation Effects on Temperature Elevation in a Steady-state, One-dimensional, Thermal Model for Millimeter Wave Exposure of One- and Three-layer Human Tissue (2010)
  • Author(s): Akio Kanezaki, Akimasa Hirata, Soichi Watanabe, Hiroshi Shirai
  • Journal Title: Physics in Medicine and Biology Vol.55 Pages: 4647-4659
  • Peer Reviewed
• [Journal Article] Complex Permittivity Estimation by Free Space Method Using Specular Reflected RCS (2010)
  • Author(s): Masayuki Ishikawa
  • Journal Title: Proceedings of 2010 Progress In Electromagnetics Research Symposium in Cambridge Volume: (CDROM)
  • Peer Reviewed
• [Journal Article] Propagation Analysis for a Simplified Indoor/outdoor Interface Model (2010)
  • Author(s): Ryoichi Sato
  • Journal Title: Proceedings of 2010 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting Volume: (CDROM)
  • Peer Reviewed
• [Journal Article] Parameter Variation Effects on Temperature Elevation in a Steady-state, One-dimensional, Thermal Model for Millimeter Wave Exposure of One- and Three-layer Human Tissue (2010)
  • Author(s): Akio Kanezaki
  • Journal Title: Physics in Medicine and Biology Volume: 55 Pages: 4647-4659
  • Peer Reviewed
• [Journal Article] Complex Permittivity Estimation by Free Space RCS Measurement (2010)
  • Author(s): Hiroshi Shirai
  • Journal Title: Proceedings of the Third International Conference on Communications and Electronics Volume: (CDROM)
  • Peer Reviewed
• [Journal Article] Electromagnetic Plane Wave Diffraction by a Wide Slit on Conducting Plane with Finite Thickness (2010)
  • Author(s): Ryoichi Sato
  • Journal Title: Proceedings of 2010 Asia Pacific Radio Science Conference Volume: (CDROM)
  • Peer Reviewed
• [Journal Article] 人体電磁波曝露解析に伴う人体モデルの量子化についての検討 (2010)
  • Author(s): 石井純司
  • Journal Title: 電気学会電磁界理論研究会資料 Volume: EMT-10-111 Pages: 53-58
• [Journal Article] Effects of dielectric permittivities on skin heating due to millimeter wave exposure (2009)
  • Author(s): Akio Kanezaki,Akimasa Hirata, Soichi Watanabe, Hiroshi Shirai
  • Journal Title: BioMedical Engineering Online (オンラインジャーナル http://www.biomedical-engineering-online.com/content/8/1/20.)
  • Peer Reviewed
• [Journal Article] Efficient Ray-launching Method For 2D Indoor Propagation Analysis (2009)
  • Author(s): Ryoichi Sato, Hiroshi Shirai
  • Journal Title: IEICE Transaction on Electronics Vol.E92-C, No.1 Pages: 40-45
  • NAID: 10026820700
  • Peer Reviewed
• [Journal Article] Propagation Characteristics for a Simplified Indoor/Outdoor Interface Model (2009)
  • Author(s): Ryoichi Sato
  • Journal Title: Proc.of 2009 Korea-Japan Joint Conference on AP/EMC/EMT Pages: 263-266
  • Peer Reviewed
• [Journal Article] On Multiple Scattering Between Slits in an Infinite PEC Screen (2009)
  • Author(s): Ryoichi Sato
  • Journal Title: Proc.of 2009 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting (CDROM)
  • Peer Reviewed
• [Journal Article] Efficient Ray-launching Analysis for Indoor Propagation Including Multiple Reflection Effect Inside Walls (2009)
  • Author(s): Ryoichi Sato
  • Journal Title: Proc.of 2009 International Conference on Electromagnetics in Advanced Applications (CDROM)
  • Peer Reviewed
• [Journal Article] Non-contacting Estimation of Complex Permittivity Using RCS Measurement, CDROM, Bangkok, Thailand (2009)
  • Author(s): 石川正行
  • Journal Title: Proc.of 2009 International Symposium on Antennas and Propagation(ISAP 2009) (CDROM)
  • Peer Reviewed
• [Journal Article] Effects of dielectric permittivities on skin heating due to millimeter wave exposure (2009)
  • Author(s): Akio Kanezaki
  • Journal Title: BioMedical Engineering Online
  • Peer Reviewed
• [Journal Article] 後方散乱断面積を用いた誘電率の推定について (2009)
  • Author(s): 石川正行
  • Journal Title: 電気学会電磁界理論研究会資料 EMT-09-131 Pages: 45-50
• [Journal Article] Definition of Visibility in Three Dimensional Space by CG Technology for Security Cameras/Guards (2009)
  • Author(s): Mitsunori Makino
  • Journal Title: Proceedings of 2009 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2009) (CDROM)
  • Peer Reviewed
• [Journal Article] A Non-haptic Input Interface for Immersive Systems (2009)
  • Author(s): Yusuke Suga, Mitsunori Makino
  • Journal Title: Proceedings of 2009 NICOGRAPH International (CDROM)
  • NAID: 110004082615
  • Peer Reviewed
• [Journal Article] Efficient Ray-Launching Method For 2D Indoor Propagation Analysis (2009)
  • Author(s): Ryoichi Sato
  • Journal Title: IEICE Trans, on Electronics E92-C Pages: 40-45
  • NAID: 10026820700
  • Peer Reviewed
• [Journal Article] RCS値からの複素誘電率推定法に関する考察-時間領域による結果- (2009)
  • Author(s): 石川 正行
  • Journal Title: 2009年電子情報通信学会総合大会講演論文集 (CDROM)
• [Journal Article] Simplified ray-launching analysis for indoor propagation including multiple reflection effect inside walls (2008)
  • Author(s): Ryoichi Sato
  • Journal Title: Proc. of 2008 IEEE Antennas and Propag ation Society International Symposium EMT-08-117(CDROM)
• [Journal Article] 導体平板上の隣接方形溝開の多重散乱について (2008)
  • Author(s): 佐藤亮一
  • Journal Title: 電子情報通信学会2008年ソサイェティ大会講演論文集 (CDROM)
• [Journal Article] 都市空間における高周波電磁波伝搬提示システムの没入環境下での実現 (2008)
  • Author(s): 池田 正彦
  • Journal Title: 芸術科学会第24回NICOGRAPH論文コンテスト論文集 (CDROM)
• [Journal Article] 厚みをもつ導体スクリーン上に存在する隣接スリット間の多重散乱について (2008)
  • Author(s): 佐藤亮一
  • Journal Title: 電気学会電磁界理論研究会資料 EMT-08-87 Pages: 25-30
  • NAID: 10025650961
• [Journal Article] 散乱断面積からの複素誘電率推定法に関する考察 (2008)
  • Author(s): 小島 茂裕
  • Journal Title: 電気学会電磁界理論研究会資料 EMT-08-89 Pages: 37-42
• [Journal Article] 人体近傍に置かれたアンテナからの放射解析とその可視化表現 (2008)
  • Author(s): 前川 耕一郎
  • Journal Title: 電気学会電磁界理論研究会資料 EMT-08-115 Pages: 7-12
• [Journal Article] 外部から建物内へ透過する電波の近似推定法の検討 (2008)
  • Author(s): 中西崇之
  • Journal Title: 電気学会電磁界理論研究会資料 EMT-08-117 Pages: 19-24
• [Journal Article] Theoretical analysis for temperature elevation of humanbody due to millimeter wave exposure (2008)
  • Author(s): Akio Kanezaki
  • Journal Title: 4th Cairo International Biomedical Engineering Conference (CDROM)
  • Peer Reviewed
• [Presentation] FDTD Cell Size Study for SAR Evaluation for Human Head Exposure to Near EM Field (2011)
  • Author(s): Hiroshi Shirai, Jun Ohisa
  • Organizer: 2011 Progress In Electromagnetics Research Symposium in Cambridge (PIERS 2011 in Marrakesh)
  • Place of Presentation: Marrakesh, Morocco.
  • Year and Date: 2011-03-20
• [Presentation] FDTD Cell Size Study for SAR Evaluation for Human Head Exposure to Near EM Field (2011)
  • Author(s): Hiroshi Shirai
  • Organizer: 2011 Progress In Electromagnetics Research Symposium in Marrakesh
  • Place of Presentation: Marrakesh, Morocco
  • Year and Date: 2011-03-20
• [Presentation] An Efficient Ray Tracing with LOD Control by Head Tracking and Human Eyesight (2011)
  • Author(s): Yosuke Nara, Mitsunori Makino
  • Organizer: International Workshop on Advanced Image Technology 2011 (IWAIT2011)
  • Place of Presentation: Jakarta, Indonesia.
  • Year and Date: 2011-01-08
• [Presentation] An Efficientry Ray Tracing with LOD Control by Head Tracking and Human Eyesight (2011)
  • Author(s): Yosuke Nara
  • Organizer: International Workshop on Advanced Image Technology 2011 (IWAIT2011)
  • Place of Presentation: Jakarta, Indonesia
  • Year and Date: 2011-01-08
• [Presentation] 人体電磁波曝露解析に伴う人体モデルの量子化についての検討 (2010)
  • Author(s): 石井純司
  • Organizer: 電気学会電磁界理論研究会
  • Place of Presentation: 福島県猪苗代町
  • Year and Date: 2010-11-11
• [Presentation] Electromagnetic Plane Wave Diffraction by a Wide Slit on Conducting Plane with Finite Thickness (2010)
  • Author(s): Ryoichi Sato, Hiroshi Shirai
  • Organizer: The 2010 Asia-Pacific Radio Science Conference
  • Place of Presentation: 富山県富山市
  • Year and Date: 2010-09-24
• [Presentation] Electromagnetic Plane Wave Diffraction by a Wide Slit on Conducting Plane with Finite Thickness (2010)
  • Author(s): Ryoichi Sato
  • Organizer: 2010 Asia Pacific Radio Science Conference
  • Place of Presentation: Toyama, Japan
  • Year and Date: 2010-09-24
• [Presentation] Complex Permittivity Estimation by Free Space RCS Measurement (2010)
  • Author(s): Hiroshi Shirai, Masayuki Ishikawa
  • Organizer: The Third International Conference on Communications and Electronics (HUT- ICCE2010)
  • Place of Presentation: Nha Trang, Vietnam.
  • Year and Date: 2010-08-12
• [Presentation] Complex Permittivity Estimation by Free Space RCS Measurement (2010)
  • Author(s): Hiroshi Shirai
  • Organizer: Third International Conference on Communications and Electronics
  • Place of Presentation: Nha Trang, Vietnam
  • Year and Date: 2010-08-12
• [Presentation] Propagation Analysis for a Simplified Indoor/outdoor Interface Model (2010)
  • Author(s): Ryoichi Sato
  • Organizer: 2010 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting
  • Place of Presentation: Toronto, Canada
  • Year and Date: 2010-07-16
• [Presentation] Complex Permittivity Estimation by Free Space Method Using Specular Reflected RCS (2010)
  • Author(s): Hiroshi Shirai
  • Organizer: 2010 Progress In Electromagnetics Research Symposium in Cambridge
  • Place of Presentation: Cambridge, MA, USA
  • Year and Date: 2010-07-06
• [Presentation] 後方散乱断面積を用いた誘電率の推定について (2009)
  • Author(s): 石川正行
  • Organizer: 電気学会 電磁界理論シンポジウム
  • Place of Presentation: 沖縄県那覇市
  • Year and Date: 2009-11-27
• [Presentation] 体験する技術-バーチャルリアリティからの発想 (2009)
  • Author(s): 牧野光則
  • Organizer: 日本デザイン学会平成21年度秋季企画大会
  • Place of Presentation: 東京
  • Year and Date: 2009-11-15
• [Presentation] Non-contacting Estimation of Complex Permittivity Using RCS Measurement (2009)
  • Author(s): 石川正行
  • Organizer: 2009 International Symposium on Antennas and Propagation (ISAP 2009)
  • Place of Presentation: Bangkok, Thailand
  • Year and Date: 2009-10-21
• [Presentation] Efficient Ray-launching Analysis for Indoor Propagation Including Multiple Reflection Effect Inside Walls (2009)
  • Author(s): Ryoichi Sato, Hiroshi Shirai
  • Organizer: 2009 International Conference on Electro- magnetics in Advanced Applications
  • Place of Presentation: Turin, Italy.
  • Year and Date: 2009-09-14
• [Presentation] Efficient Ray-launching Analysis for Indoor Propagation Including Multiple Reflection Effect Inside Walls (2009)
  • Author(s): Ryoichi Sato
  • Organizer: Proc. of 2009 International Conference on Electromagnetics in Advanced Applications
  • Place of Presentation: Turin, Italy
  • Year and Date: 2009-09-14
• [Presentation] Definition of Visibility in Three Dimensional Space by CG Technology for Security Cameras/Guards (2009)
  • Author(s): 牧野光則
  • Organizer: 2009 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC2009)
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2009-07-08
• [Presentation] A Non-haptic Input Interface for Immersive Systems (2009)
  • Author(s): Yusuke Suga, Mitsunori Makino
  • Organizer: 2009 NICOGRAPH International
  • Place of Presentation: 石川県金沢市
  • Year and Date: 2009-06-20
• [Presentation] On Multiple Scattering Between Slits in an Infinite PEC Screen (2009)
  • Author(s): Ryoichi Sato, Hiroshi Shirai
  • Organizer: 2009 IEEE Antennas and Propagation Society International Symposium
  • Place of Presentation: Charleston, USA.
  • Year and Date: 2009-06-03
• [Presentation] On Multiple Scattering Between Slits in an Infinite PEC Screen (2009)
  • Author(s): Ryoichi Sato
  • Organizer: 2009 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting
  • Place of Presentation: Charleston, SC, USA
  • Year and Date: 2009-06-03
• [Presentation] Propagation Characteristics for a Simplified Indoor/Outdoor Interface Model (2009)
  • Author(s): Ryoichi Sato
  • Organizer: 2009 Korea-Japan Joint Conference on AP/EMC/EMT
  • Place of Presentation: Inchon, Korea
  • Year and Date: 2009-05-14
• [Presentation] RCS値からの複素誘電率推定法に関する考察-時間領域による結果- (2009)
  • Author(s): 石川 正行
  • Organizer: 2009年電子情報通信学会総合大会
  • Place of Presentation: 松山
  • Year and Date: 2009-03-19
• [Presentation] Theoretical analysis for temperature elevation of human body due to millimeter wave exposure (2008)
  • Author(s): Akio Kanezaki
  • Organizer: 4th Cairo Internat ional Biomedical Engineering Conference
  • Place of Presentation: Cairo, Egypt
  • Year and Date: 2008-12-20
• [Presentation] 人体近傍に置かれたアンテナからの放射解析とその可視化表現 (2008)
  • Author(s): 前川 耕一郎
  • Organizer: 第37回電磁界理論シンポジウム
  • Place of Presentation: 高山
  • Year and Date: 2008-11-21
• [Presentation] 外部から建物内へ透過する電波の近似推定法の検討 (2008)
  • Author(s): 中西 崇之
  • Organizer: 第37回電磁界理論シンポジウム
  • Place of Presentation: 高山
  • Year and Date: 2008-11-21
• [Presentation] 厚みをもつ導体スクりーン上に存在する隣接スリット間の多重散乱について (2008)
  • Author(s): 佐藤亮一
  • Organizer: 第37回電磁界理論シンポジウム
  • Place of Presentation: 高山
  • Year and Date: 2008-11-20
• [Presentation] 散乱断面積からの複素誘電率推定法に関する考察 (2008)
  • Author(s): 小島 茂裕
  • Organizer: 第37回電磁界理論シンポジウム
  • Place of Presentation: 高山
  • Year and Date: 2008-11-20
• [Presentation] 都市空間における高周波電磁波伝搬提示システムの没入環境下での実現 (2008)
  • Author(s): 池田正彦,牧野光則
  • Organizer: 芸術科学会第24回NICOGRAPH論文コンテスト
  • Place of Presentation: 北海道札幌市
  • Year and Date: 2008-10-22
• [Presentation] 都市空間における高周波電磁波伝搬提示システムの没入環境下での実現 (2008)
  • Author(s): 池田 正彦
  • Organizer: 芸術科学会第24回NICOGRAPH論文コンテスト
  • Place of Presentation: 札幌
  • Year and Date: 2008-10-22
• [Presentation] 導体平板上の隣接方形溝間の多重散乱について (2008)
  • Author(s): 佐藤亮一
  • Organizer: 電子情報通信学会2008年ソサイェティ大会
  • Place of Presentation: 川崎市
  • Year and Date: 2008-09-19
• [Presentation] Simplified Ray-launching Analysis for Indoor Propagation Including Multiple Reflection Effect Inside Walls (2008)
  • Author(s): Ryoichi Sato, Hiroshi Shirai
  • Organizer: 2008 IEEE Antennas and Propagation Society International Symposium
  • Place of Presentation: San Diego, USA.
  • Year and Date: 2008-07-07
• [Presentation] Simplified ray-launching analysis for indoor propagation including multiple reflection effect inside walls (2008)
  • Author(s): Ryoichi Sato
  • Organizer: 2008 IEEE Antennas and Propagation Society International Symposium
  • Place of Presentation: San Diego, USA
  • Year and Date: 2008-07-07
• [Remarks] ホームページ等
  • URL: http://www.elect.chuo-u.ac.jp/shirai/
• [Remarks]
  • URL: http://www.elect.chuo-u.ac.jp/shirai/