Title
DOA Estimation under Unknown Mutual Coupling and Multipath with Improved Effective Array Aperture.
Abstract
Subspace-based high-resolution direction of arrival (DOA) estimation significantly deteriorates under array manifold perturbation and rank deficiency of the covariance matrix due to mutual coupling and multipath propagation, respectively. In this correspondence, the unknown mutual coupling can be circumvented by the proposed method without any passive or active calibration process, and the DOA of the coherent signals can be accurately estimated accordingly. With a newly constructed matrix, the deficient rank can be restored, and the effective array aperture can be extended compared with conventional spatial smoothing. The proposed method achieves a good robustness and DOA estimation accuracy with unknown mutual coupling. The simulation results demonstrate the validity and efficiency of the proposed method.
Year
DOI
Venue
2015
10.3390/s151229832
SENSORS
Keywords
Field
DocType
DOA estimation,coherent signals,mutual coupling,matrix reconstruction
Multipath propagation,Data mining,Coupling,Subspace topology,Matrix (mathematics),Direction of arrival,Algorithm,Robustness (computer science),Electronic engineering,Smoothing,Covariance matrix,Engineering
Journal
Volume
Issue
ISSN
15
12.0
1424-8220
Citations 
PageRank 
References 
6
0.52
6
Authors
3
Name
Order
Citations
PageRank
Yuexian Wang1157.46
Matthew Trinkle2445.71
Brian W-H Ng360.52