空間FFTに基づくマルチビームの信号波到来角度推定への応用  [in Japanese] Application of Multiple Beams for DOA Estimation Method based on Spatial FFT  [in Japanese]

Abstract

近年, ディジタル信号処理技術に基づく, アレーアンテナのディジタルビームフォーミング(DBF)が注目を集めている. 一方, 信号到来角度(DOA)は, アレーアンテナの適応制御において重要なパラメータとなるため, 特に移動体端末への適用を考えたとき, マルチパス環境に対する耐久性があり, かつ計算負荷の小さいDOA推定方法が望まれる. 本稿では, まず, アレーアンテナの各素子出力に空間FFTを施して得られる直交マルチビームを用いるDOA推定法に, 黄金分割法の適用を考え, 雑音及びマルチパスフェージング環境下における特性を計算機シミュレーションを中心に検討した.

Recently, DBF(Digital Beam Forming) of adaptive arrays based on digital signal Processing are widely paid attention. In those considerations, the DOA(direction of arrival) estimation method is recognized as one of the key factors affecting the performance of adaptive arrays under the multipath environment. In this paper, first, we propose DOA estimation method which utilizes spacial FFT of array out-puts with the golden section method. Second, the proposed method is examined under multipath environment.

Journal

Technical report of IEICE. CQ   [List of Volumes]

Technical report of IEICE. CQ 97(190), 1-6, 1997-07-25  [Table of Contents]

The Institute of Electronics, Information and Communication Engineers

References:  5

You must have a user ID to see the references.If you already have a user ID, please click "Login" to access the info.New users can click "Sign Up" to register for an user ID.

Preview

Preview

Codes

  • NII Article ID (NAID) :
    110003272963
  • NII NACSIS-CAT ID (NCID) :
    AN1054106X
  • Text Lang :
    JPN
  • Article Type :
    ART
  • Databases :
    CJP  NII-ELS 

Share