J4 ›› 2013, Vol. 40 ›› Issue (5): 33-37+106.doi: 10.3969/j.issn.1001-2400.2013.05.006

• Original Articles • Previous Articles     Next Articles

High resolution angle estimation of the bistatic MIMO radar

SHEN Fangfang;LI Yaxiang;ZHAO Guanghui;SHI Guangming   

  1. (School of Electronic Engineering, Xidian Univ., Xi'an  710071, China)
  • Received:2012-05-05 Online:2013-10-20 Published:2013-11-27
  • Contact: SHEN Fangfang E-mail:ffshen@mail.xidian.edu.cn

Abstract:

A new method is proposed in this paper for jointly estimating the azimuths DOD-DOA (Direction of Departure-Direction of Arrival) of the targets in the bi-static MIMO scene under the circumstance of the Gaussian white noise. A two-dimension redundant dictionary is firstly constructed based on the bi-static MIMO scene where the targets are present. Then, the positions (DOD-DOA) of the targets are sparsely denoted as a sparse vector by projecting the positions of targets on the redundant dictionary. On the sparse model, an algorithm is applied for solving for the positions of the targets by solving the problem of minimizing the reweighted l1-norm of the sparse vector. For the algorithm to reconstruct the positions of the targets robustly under a low SNR, a modified weight is used in the algorithm.

Key words: bi-static multiple-input multiple-output radar, direction of departure-direction of drrival, reweighted l1-norm

CLC Number: 

  • TN957.52