等価ウエイト行列をキャリブレートしたエスパアンテナの高分解能到来方向推定  [in Japanese] Reactance-Domain MUSIC DOA Estimation Using ESPAR Antenna with Calibrated Equivalent Weight Matrix  [in Japanese]

Abstract

本報告では,オムニパターンを含めた7つの指向性パターンを用いて,信号部分空間からエスパアンテナの「等価ウエイト行列」を校正する方法を提案する.リアクタンスドメインMUSIC法において本校正方法を用いた場合には,校正しない場合に比べて20dB程度鋭いスペクトラムが得られ,角度分解能が向上することを電波暗室内実験により示す.また本校正方法に適した指向性パターンについて理論的に考察し,シミュレーション結果から従来の指向性パターンに比べてピーク高が10dB程度向上することを明らかにする.

In this paper, we propose a calibration method of the ESPAR antenna by calculating an "equivalent weight matrix" which is I matrix composed of several equivalent weight vectors forming directional radiation patterns. We also present an experiment result that achieves a sharper MUSIC spectrum of about 20 dB in comparison with the case of no calibration in an anechoic chamber. In addition, after theoretically considering some more appropriate directive patterns, a simulation result clarifies that the appropriate directive patterns make a shaper MUSIC spectrum of about 10 dB than conventional directive patterns.

Journal

IEICE technical report   [List of Volumes]

IEICE technical report 102(679), 1-8, 2003-02-28  [Table of Contents]

The Institute of Electronics, Information and Communication Engineers

References:  10

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Codes

  • NII Article ID (NAID) :
    110003207217
  • NII NACSIS-CAT ID (NCID) :
    AA1154676X
  • Text Lang :
    JPN
  • Article Type :
    ART
  • ISSN :
    09135685
  • NDL Article ID :
    6553449
  • NDL Source Classification :
    ZN33(科学技術--電気工学・電気機械工業--電子工学・電気通信)
  • NDL Call No. :
    Z16-940
  • Databases :
    CJP  NDL  NII-ELS 

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