Modified Propagator Method for 2-Dimensional DOA Estimation in Monostatic MIMO Radar with L-Shaped Array

Abstract:

A modified propagator method based on L-shaped array for 2-Dimensional (2-D) direction of arrival (DOA) estimation in monostatic MIMO radar is proposed. A cross-correlation matrix, which can eliminate the influence of noise, is constructed by the received data from the two orthogonal uniform linear arrays (ULAs) at x-axis and z-axis. Then the matrix can be utilized to estimate signal subspace of 2-D DOA through propagator method. At last, the elevation and azimuth angles of the 2-D DOA is automatically paired by the complex eigenvalues of a low-order complex matrix. The 2-D DOA estimation performance of the proposed method is better than conventional propagator method and ESPRIT algorithm. Simulation results verify the effectiveness of the proposed method.

• Periodical: Advanced Materials Research (Volumes 846-847)
• Pages: 1171-1175
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.846-847.1171
• Online since: November 2013
• Authors: Xin Li*, Ding Jie Xu, Xiao Meng Wang
• Keywords: 2-D DOA, L-Shaped Array, MIMO Radar, Propagator Method

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