Computationally Efficient DOA Estimation for Massive Uniform Linear Array

• JHANG Wei

  Program of Electrical and Communications Engineering, Feng Chia University

• CHEN Shiaw-Wu

  Department of Automatic Control Engineering, Feng Chia University

• CHANG Ann-Chen

  Department of Information Technology, Ling Tung University

抄録

This letter presents an improved hybrid direction of arrival (DOA) estimation scheme with computational efficiency for massive uniform linear array. In order to enhance the resolution of DOA estimation, the initial estimator based on the discrete Fourier transform is applied to obtain coarse DOA estimates by a virtual array extension for one snapshot. Then, by means of a first-order Taylor series approximation to the direction vector with the one initially estimated in a very small region, the iterative fine estimator can find a new direction vector which raises the searching efficiency. Simulation results are provided to demonstrate the effectiveness of the proposed scheme.

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 E103.A (1), 361-365, 2020-01-01

  一般社団法人 電子情報通信学会

キーワード

• direction of arrival
• massive MIMO
• discrete Fourier transform
• virtual array
• signal subspace
• Taylor series expansion

詳細情報

• CRID: 1390565134814112256
• NII論文ID: 130007778786
• DOI: 10.1587/transfun.2019eal2107
• ISSN: 17451337
• ISSN: 09168508
• Web Site: https://www.jstage.jst.go.jp/article/transfun/E103.A/1/E103.A_2019EAL2107/_pdf
• 本文言語コード: en
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