Higher-Order Cyclostationarity Based Direction Estimation of Coherent Narrow-Band Signals

• XIN Jingmin

  YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.

• TSUJI Kiroyuki

  Communications Research Laboratory, Ministry of Posts and Telecommunications

• SANO Akira

  Department of System Design Engineering, Keio University

抄録

To improve the resolution capability of the directions-of-arrival (DOA) estimation, some subspace-based methods have recently been developed by exploiting the specific signal properties (e. g. non-Gaussian property and cyclostationarity) of communication signals. However, these methods perform poorly as the ordinary subspace-based methods in multipath propagation situations, which are often encountered in mobile communication systems because of various reflections. In this paper, we investigate the direction estimation of coherent signals by jointly utilizing the merits of higher-order statistis and cyclostationarity to enhance the performance of DOA estimation and to effectively reject interference and noise. For estimating the DOA of narrow-band coherent signals impinging on a uniform linear array, a new higher-order cyclostationarity based approach is proposed by incorporating a subarray scheme into a linear prediction technique. This method can improve the resolution capability and alleviate the difficulty of choosing the optimal lag parameter. It is shown numerically that the proposed method is superior to the conventional ones.

収録刊行物

• IEICE transactions on fundamentals of electronics, communications and computer sciences

  IEICE transactions on fundamentals of electronics, communications and computer sciences 83 (8), 1624-1633, 2000-08-25

  一般社団法人電子情報通信学会

キーワード

• array signal processing
• directions-of-arrival estimation
• cyclostationarity
• higher-order statistics
• linear prediction

詳細情報

• CRID: 1573668927255419136
• NII論文ID: 110003216673
• NII書誌ID: AA10826239
• ISSN: 09168508
• 本文言語コード: en
• データソース種別:
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