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International Journal of Antennas and Propagation
Volume 2015, Article ID 681251, 6 pages
Research Article

Utilizing Principal Singular Vectors for 2D DOA Estimation in Single Snapshot Case with Uniform Rectangular Array

1Key Lab for Intelligent Robot in Hubei Province, Wuhan Institute of Technology, Wuhan 430073, China
2School of Software, Huazhong University of Science and Technology, Wuhan 430074, China
3Department of Electronic Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong

Received 18 February 2015; Accepted 4 May 2015

Academic Editor: Atsushi Mase

Copyright © 2015 Yuntao Wu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The problem of azimuth and elevation directions of arrival (DOAs) estimation using a uniform rectangular array (URA) in single snapshot case is addressed in this paper. Using the principal singular vectors of the observed data matrix, an iterative procedure based on the linear prediction property, and weighted least squares is proposed for finding the DOAs with lower computational complexity. Furthermore, the azimuth and elevation parameters are automatically paired. Computer simulations are included to demonstrate the effectiveness of the proposed algorithm.