IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
DOA estimation of coherently distributed sources based on block-sparse constraint with measurement matrix uncertainty
Tie Dan WangLu GanPing WeiHong Shu Liao
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JOURNALS FREE ACCESS

2013 Volume 10 Issue 6 Pages 20120863

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Abstract

In this letter, we proposed a new algorithm to solve the problem concerning the direction-of-arrivals (DOAs) estimation of coherently distributed sources based on the block sparse signal matrix uncertainty model of compressed sensing. Considering the measurement matrix corrupted by the unknown noise, the central DOA and the angular spread estimation may degrade considerably. But our method is robust with the measurement matrix uncertainty. Furthermore, the proposed method has better performance in low signal-to-noise (SNR). The effectiveness of our method is confirmed by simulation results.

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© 2013 by The Institute of Electronics, Information and Communication Engineers
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