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Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 427980, 8 pages
http://dx.doi.org/10.1155/2013/427980
Research Article

Two-Dimensional Direction-of-Arrival Estimation for Trilinear Decomposition-Based Monostatic Cross MIMO Radar

Nanjing University of Aeronautics and Astronautics, College of Electronics & Engineering, Nanjing 210016, China

Received 22 July 2013; Revised 5 November 2013; Accepted 5 November 2013

Academic Editor: Oleg V. Gendelman

Copyright © 2013 Fangqing Wen and Gong Zhang. 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.

Abstract

A low complexity monostatic cross multiple-in multiple-out (MIMO) radar scheme is proposed in this paper. The minimum-redundancy linear array (MRLA) is introduced in the cross radar to improve the efficiency of the array elements. The two-dimensional direction-of-arrival (DOA) estimation problem links to the trilinear model, which automatically pairs the estimated two-dimensional angles, requiring neither eigenvalue decomposition of received signal covariance matrix nor spectral peak searching. The proposed scheme performs better than the uniform linear arrays (ULA) configuration under the same conditions, and the proposed algorithm has less computational complexity than that of multiple signal classification (MUSIC) algorithm. Simulation results show the effectiveness of our scheme.