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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]
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IEICE technical report 102(679), 1-8, 2003-02-28 [Table of Contents]
The Institute of Electronics, Information and Communication Engineers
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