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Calculations of Radar Cross Section of Complex-shaped 3D Objects

Research Project

Project/Area Number 06650423
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 情報通信工学
Research InstitutionKumamoto University

Principal Investigator

IKUNO Hiroyoshi  Kumamoto University, Faculty of Engineering, Professor, 工学部, 教授 (80040400)

Co-Investigator(Kenkyū-buntansha) NISHIMOTO Masahiko  Kumamoto University, Faculty of Engineering, Assistant Prof., 工学部, 助教授 (60198520)
OKUNO Yoichi  Kumamoto University, Faculty of Engineering, Professor, 工学部, 教授 (50117082)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1995: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1994: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsRadar Cross Section / Yasuura method / GMT / FD-TD method / PML / Optical device / Optical waveguide / 三次元散乱 / 並列計算
Research Abstract

Up to now in researches of radar cross section (RCS) calculations, the RCS have been calculated for 2D objects in many cases. Even though for 3D objects, the RCS have been calculated only for simple-shaped 3D objects, of calculated with approximation quiteoften. In this research we calculated the RCS of arbitrary-shaped 3D objects accurately using the Yasuura method which was a high-reliable numerical analysis technique, and studied about characteristics of electromagnetic wave scattering. And also, we analyzed characteristics of optical devices and optical waveguides, which are composed of various materials and/or complex structures, using the FD-TD method as a preferable numerical analysis technique for the parallel computation. The main results of this research are as follows :
1.We offered the Yasuura method introducing the Generalized Multipole Technique (GMT) , that could calculate the RCS of complex-shaped 3D objects accurately, and could be a effective numerical analysis technique for the scattering problems on account of fast convergence of the solutions. Practically, we calculated the RCS of various complex-shaped 3D objects, such as peanutshell-shaped, doughnut-shaped and so on.
2.We showed that the FD-TD method using Perfectly Matched Layr (PML) as the absorbing boundary condition is widely applicable to electromagnetic wave scattering problems with arbitrary complex-shaped 3D objects. Furthermore we also showed that it could be a powerful technique for the analysis of potical devices and/or optical waveguides.
3.We made up a small-scaled parallel computer system composed of transputers and personal computers for laboratory use, which enabling the parallel computation of the both methods.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (39 results)

All Other

All Publications (39 results)

  • [Publications] 中 良弘: "ウェーブディジタルフィルタ原理による誘電体導波路の特性解析" 電気学会電磁界理論研究会資料. EMT-94-67. 11-20 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 川野光則: "GMTによる三次元電磁波散乱問題の解析" 電気学会電磁界理論研究会資料. EMT-94-115. 43-52 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 中 良弘: "FD-TD法による光回路素子の特性解析" 電子情報通信学会技術研究報告. LQE94-71. 7-12 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyoshi IKUNO: "FINITE-DIFFERENCE TIME-DOMAIN TECHNIQUES IN COMPUTATIONAL ELECTROMAGNETICS" OPTICAL FIBER SCIENCE AND ELECTROMAGNETIC THEORY 20-22, Sept., 1995, Tianjin, China. Vol.1. A-14-A-19 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoshihiro NAKA: "Numerical analysis of dielectric slab optical waveguides using the FD-TD method with a ‘Perfectlt Matched Layer' absorbing boundary condition" 1995 Asia-Pacific Microwave Conference Oct. 10-13, 1995, KAIST, Taejon, KOREA. Vol.1. 151-154 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Akira YATA: "Offset-Loss Characteristics of Parabolic Core Slab Waveguides Using the Berenger's Method" 1995 Asia-Pacific Microwave Conference Oct. 10-13, 1995, KAIST, Taejon, KOREA. Vol.1. 230-233 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyoshi IKUNO: "Numerical analysis of electromagnetic wave scattering from convex-concave surfaces using the FD-TD method with a 'Perfectly Matched Layer'absorbing boundary condition" 1995 Asia-Pacific Microwave Conference Oct. 10-13, 1995, KAIST, Taejon, KOREA. Vol.2. 604-607 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 中 良弘: "FD-TD法による多重導波路構造の特性解析" 電子情報通信学会技術研究報告. OPE95-79. 37-42 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 川野光則: "完全導体からなる三次元物体における表面電流密度の数値解析" 1995年電子情報通信学会総合大会講演論文集. 48- (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 矢田 粲: "不均質スラブ光導波路のFD-TD法による伝搬特性の解析" 1995年電子情報通信学会総合大会講演論文集. 359- (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 中 良弘: "FD-TD法による不連続部を有する誘電体導波路の解析" 1995年電子情報通信学会総合大会講演論文集. 361- (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 川野光則: "安浦の方法による三次元電磁波散乱の数値解析" 電気学会電磁界理論研究会資料. EMT-95-94. 39-48 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 中 良弘: "非対称多重導波路構造のFD-TD法による特性解析" 電気学会電磁界理論研究会資料. EMT-95-105. 49-57 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Naka, H.Ikuno, and M.Nishimoto: "Analysis of dielectric waveguides using principles of wave digital filters" Inst. Electrical Engineers of Japan, Group of Electromagnetic Field Theory. EMT-94-67. 11-20 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Kawano, H.Ikuno, and M.Nishimoto: "GMT Analysis of Three Dimensional Scattering Problems" Inst. Electrical Engineers of Japan, Group of Electromagnetic Field Theory. EMT-94-115. 43-52 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Naka, H.Ikuno, and M.Nishimoto: "Analysis of dielectric slab optical waveguides using the FD-TD method" TECHNICAL REPORT OF IEICE. LQE94-71. 7-12 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] H.Ikuno: "FINITE-DIFFERENCE TIME-DOMAIN TECHNIQUES IN COMPUTATIONAL ELECTROMAGNETICS" OPTICAL FIBER SCIENCE AND ELECTROMAGNETIC THEORY 20-22 Sept., 1995, Tianjin, China. Vol.1 of 2. A-14-A-19 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Naka, H.Ikuno, A.Yata, and M.Nishimoto: "Numerical analysis of dielectric slab optical waveguides using the FD-TD method with a 'Perfectly Matched Layr' absorbing boundary condition" 1995 Asia-Pacific Microwave Conf.Oct. 10-13,1995, KAIST,Taejon, KOREA. Vol.1 of 2. 151-154 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] A.Yata, Y.Naka, and H.Ikuno: "Offset-Loss Characteristics of Parabolic Core Slad Waveguides Using the Berenger's Method" 1995 Asia-Pacific Microwave Conf.Oct.10-13,1995, KAIST,Taejon, KOREA. Vol.1 of 2. 230-233 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] H.Ikuno, M.Nishimoto, and K.Yoshio: "Numerical analysis of electromagnetic wave scattering from convexconcave surfaces using the FD-TD method with a 'Perfectly Matched Layr'absorbing boundary condition" 1995 Asia-Pacific Microwave Conf.Oct.10-13,1995, KAIST,Taejon, KOREA. Vol.1 of 2. 604-607 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Naka, H.Iluno, A.Yata, and M.Nishimoto: "Analysis of characteristics of multi-waveguides structure using the FD-TD method" TECHNICAL REPORT OF IEICE. OPE95-79. 37-42 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Kawano, H.Ikuno, and M.Nishimoto: "Numerical analysis of surface current density on a perfectly conducting 3-D object" PROCEEDINGS OF THE 1995 IEICE GENERAL CONFERENCE. 48 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] A.Yata, Y.Naka, and H.Ikuno: "Propagation characteristics of waveguides with a parabolic refractive-index profile" PROCEEDINGS OF THE 1995 IEICE GENERAL CONFERENCE. 359 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Naka, H.Ikuno, A.Yata, and M.Nishimoto: "Analysis of waveguide discontinuity using the FD-TD method" PROCEEDINGS OF THE 1995 IEICE GENERAL CONFERENCE. 361 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Kawano, H.Ikuno, and M.Nishimoto: "The Yasuura Method for Three Dimensional Scattering Problems" Inst.Electrical Engineers of Japan, Group of Electromagnetic Field Theory. EMT-95-94. 39-48 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Naka, H.Ikuno, A.Yata, and M.Nishimoto: "Analysis of characteristics of asymmetric multiwaveguide structure using FD-TD method" Inst.Electrical Engineers of Japan, Group of Electromagnetic Field Theory. EMT-95-105. 49-57 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Hiroyoshi IKUNO: "FINITE-DIFFERENCE TIME-DOMAIN TECHNIQUES IN COMPUTATIONAL ELECTROMAGNETICS" OPTICAL FIBER SCIENCE AND ELECTROMAGNETIC THEORY 20-22,Sept.,1995,Tianjin,China. Vol.1. A-14-A-19 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yoshihiro NAKA: "Numerical analysis of dielectric slab optical waveguides using the FD-TD method with a ‘Perfectly Matched Layer' absorbing boundary condition" 1995 Asia-Pacific Microwave Conference Oct.10-13,1995,KAIST,Taejon,KOREA. Vol.1. 151-154 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Akira YATA: "Offset-Loss Characteristics of Parabolic Core Slab Waveguides Using the Berenger′s Method" 1995 Asia-Pacific Microwave Conference Oct.10-13,1995,KAIST,Taejon,KOREA. Vol.1. 230-233 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Hiroyoshi IKUNO: "Numerical analysis of electromagnetic wave scattering from convex-concave surfaces using the FD-TD method with a ‘Perfectly Matched Layer' absorbing boundary condition" 1995 Asia-Pacific Microwave Conference Oct.10-13,1995,KAIST,Taejon,KOREA. Vol.2. 604-607 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 中 良弘: "FD-TD法による多重導波路構造の特性解析" 電子情報通信学会技術研究報告. OPE95-79. 37-42 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 川野光則: "完全導体からなる三次元物体における表面電流密度の数値解析" 1995年電子情報通信学会総合大会講演論文集. 48 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 矢田 粲: "不均質スラブ光導波路のFD-TD法による伝搬特性の解析" 1995年電子情報通信学会総合大会講演論文集. 359 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 中 良弘: "FD-TD法による不連続部を有する誘電体導波路の解析" 1995年電子情報通信学会総合大会講演論文集. 361 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 川野光則: "安浦の方法による三次元電磁波散乱の数値解析" 電気学会電磁界理論研究会資料. EMT-95-94. 39-48 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 中 良弘: "非対称多重導波路構造のFD-TD法による特性解析" 電気学会電磁界理論研究会資料. EMT-95-105. 49-57 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 中良弘、生野浩正、西本昌彦: "ウェーブディジタルフィルタ原理による誘電体導波路の特性解析" 電磁界理論研究会資料. EMT-94-67. 11-20 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 川野光則、生野浩正、西本昌彦: "GMTによる三次元電磁波散乱問題の解析" 電磁界理論研究会資料. EMT-94-115. 43-52 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 中良弘、生野浩正、西本昌彦: "FD-TD法による光回路素子の特性解析" 信学技報. LQE94-71. 7-12 (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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