DOA-Based Weighted Spatial Filter Design for Sum and Difference Composite Co-Array

• IWAZAKI Sho

  Department of Electrical and Computer Engineering, Yokohama National University

• NAKAMURA Shogo

  Department of Electrical and Computer Engineering, Yokohama National University

• ICHIGE Koichi

  Department of Electrical and Computer Engineering, Yokohama National University

抄録

This paper presents a weighted spatial filter (WSF) design method based on direction of arrival (DOA) estimates for a novel array configuration called a sum and difference composite co-array. A sum and difference composite co-array is basically a combination of sum and difference co-arrays. Our configuration can realize higher degrees of freedom (DOF) with the sum co-array part at a calculation cost lower than those of the other sparse arrays. To further enhance the robustness of our proposed sum and difference composite co-array we design an optimal beam pattern by WSF based on the information of estimated DOAs. Performance of the proposed system and the DOA estimation accuracy of close-impinging waves are evaluated through computer simulations.

収録刊行物

• IEICE Transactions on Communications

  IEICE Transactions on Communications E103.B (10), 1147-1154, 2020-10-01

  一般社団法人 電子情報通信学会

キーワード

• array antenna
• adaptive beamforming
• direction of arrival estimation

詳細情報

• CRID: 1390285697606844544
• NII論文ID: 130007920558
• NII書誌ID: AA10826261
• DOI: 10.1587/transcom.2019ebp3213
• ISSN: 17451345
• ISSN: 09168516
• Web Site: http://hdl.handle.net/10131/00013529
• Web Site: https://www.jstage.jst.go.jp/article/transcom/E103.B/10/E103.B_2019EBP3213/_pdf
• 本文言語コード: en
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