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2012-07-07

The Analysis of the Influence of Random Array Error to Wideband Signal DOA Estimation Reiterative Algorithm

By Fei Zhang, Ke-Song Chen, Bin Tang, and Honggang Wu
Progress In Electromagnetics Research C, Vol. 31, 97-108, 2012
doi:10.2528/PIERC12042406

Abstract

This paper proposed a new approach, which is based on minimum mean-square error (MMSE) criterion, for wideband signal spatial direction-of-arrival (DOA) estimation when there is array error, and the impact of random array error to the new algorithm is analyzed in this paper. Pass the wideband signal mixed with array error through a bank of narrowband filters to obtain narrowband signals, then recover the sparse representation of the narrowband signals by re-iterative method in the MMSE frameworks, and estimate the number and DOA of sources from the sparse representation. The new method do not require the number of sources for direction finding, furthermore, it can estimate the DOA of coherent signals and the robustness of new algorithm to array error is better than coherent subspace algorithms. The simulated results confirmed the effectiveness and robustness of the new method.

Citation


Fei Zhang, Ke-Song Chen, Bin Tang, and Honggang Wu, "The Analysis of the Influence of Random Array Error to Wideband Signal DOA Estimation Reiterative Algorithm," Progress In Electromagnetics Research C, Vol. 31, 97-108, 2012.
doi:10.2528/PIERC12042406
http://jpier.org/PIERC/pier.php?paper=12042406

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