Underdetermined Low-Complexity Wideband DOA Estimation with Uniform Linear Arrays
ID:75 View Protection:ATTENDEE Updated Time:2020-08-05 10:17:00 Hits:457 Oral Presentation

Start Time:2020-06-08 15:40(Asia/Shanghai)


Session:S Special Session » SS09Aperture Extension And Synthetic Techniques For High-Resolution Detection And Estimation

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For a uniform linear array (ULA) with specially designed spacing and system settings, the received signals are first decomposed into different frequency bins via discrete Fourier transform (DFT). By grouping the frequencies of interest into several pairs, a generalized complexity reduction method is proposed to merge the redundant entries in both the auto-correlation matrices at each frequency and the cross-correlation matrices across different frequencies, followed by the group sparsity based low-complexity method to find the directions of arrival (DOAs) of the impinging signals. Simulation results demonstrate that significantly reduced complexity and improved performance can be achieved by the proposed method.
Direction of arrival estimation; Underdetermined; Wideband; Group sparsity
Hantian Wu
Beijing Institute of Technology, China

Submission Author
Hantian Wu Beijing Institute of Technology, China
Qing Shen Beijing Institute of Technology, China
Wei Liu University of Sheffield, United Kingdom (Great Britain)
Wei Cui Beijing Institute of Technology, China
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