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Journal of Applied Remote Sensing

New direction of arrival estimation of coherent signals based on reconstructing matrix under unknown mutual coupling
Author(s): Rui Guo; Weixing Li; Yue Zhang; Zengping Chen
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Paper Abstract

A direction of arrival (DOA) estimation algorithm for coherent signals in the presence of unknown mutual coupling is proposed. A group of auxiliary sensors in a uniform linear array are applied to eliminate the effects on the orthogonality of subspaces brought by mutual coupling. Then, a Toeplitz matrix, whose rank is independent of the coherency between impinging signals, is reconstructed to eliminate the rank loss of the spatial covariance matrix. Therefore, the signal and noise subspaces can be estimated properly. This method can estimate the DOAs of coherent signals under unknown mutual coupling accurately without any iteration and calibration sources. It has a low computational burden and high accuracy. Simulation results demonstrate the effectiveness of the algorithm.

Paper Details

Date Published: 15 February 2016
PDF: 11 pages
J. Appl. Rem. Sens. 10(1) 015013 doi: 10.1117/1.JRS.10.015013
Published in: Journal of Applied Remote Sensing Volume 10, Issue 1
Show Author Affiliations
Rui Guo, National Univ. of Defense Technology (China)
Weixing Li, National Univ. of Defense Technology (China)
Yue Zhang, National Univ. of Defense Technology (China)
Zengping Chen, National Univ. of Defense Technology (China)

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