Angle estimation in bistatic MIMO radar using improved reduced dimension Capon algorithm  

作　　者：Xiaofei Zhang Dazhuan Xu 

机构地区：[1]Electronic Engineering Department,Nanjing University of Aeronautics and Astronautics

出　　处：《Journal of Systems Engineering and Electronics》2013年第1期84-89,共6页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(60801052;61271327);Jiangsu Planned Projects for Postdoctoral Research Funds(1201039C);the China Postdoctoral Science Foundation (2012M521099);Hubei Key Laboratory of Intelligent Wireless Communications(IWC2012002)

摘　　要：This paper discusses the problem of direction of departure （DOD） and direction of arrival （DOA） estimation for a bistatic multiple input multiple output （MIMO） radar, and proposes an improved reduced-dimension Capon algorithm therein. Compared with the reduced-dimension Capon algorithm which requires pair matching between the two-dimensional angle estimation, the pro- posed algorithm can obtain automatically paired DOD and DOA estimation without debasing the performance of angle estimation in bistatic MIMO radar. Furthermore, the proposed algorithm has a lower complexity than the reduced-dimension Capon algorithm, and it is suitable for non-uniform linear arrays. The complexity of the proposed algorithm is analyzed and the Cramer-Rao bound （CRB） is also derived. Simulation results verify the usefulness of the proposed algorithm.This paper discusses the problem of direction of departure （DOD） and direction of arrival （DOA） estimation for a bistatic multiple input multiple output （MIMO） radar, and proposes an improved reduced-dimension Capon algorithm therein. Compared with the reduced-dimension Capon algorithm which requires pair matching between the two-dimensional angle estimation, the pro- posed algorithm can obtain automatically paired DOD and DOA estimation without debasing the performance of angle estimation in bistatic MIMO radar. Furthermore, the proposed algorithm has a lower complexity than the reduced-dimension Capon algorithm, and it is suitable for non-uniform linear arrays. The complexity of the proposed algorithm is analyzed and the Cramer-Rao bound （CRB） is also derived. Simulation results verify the usefulness of the proposed algorithm.

关 键 词：multiple input multiple output （MIMO） radar angle estimation Capon algorithm non-uniform array. 

分 类 号：TN958[电子电信—信号与信息处理]