Fast multi-parameter estimation and localization for MIMO radar  

作　　者：Lingyun Xu Xiaofei Zhang Miao Yu 

机构地区：[1]College of Science, Nanjing University of Aeronautics and Astronautics [2]Nanjing Telecommunication Technology Institute

出　　处：《Journal of Systems Engineering and Electronics》2015年第3期486-492,共7页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(61371169;61179006);the Jiangsu Postdoctoral Research Funding Plan(1301013B);the Nanjing University of Aeronautics and Astronautics Funding(NZ2013208)

摘　　要：This paper addresses the problem of four-dimensional angle and Doppler frequency estimation for bistatic multiple-input multiple-output （MIMO） radar with arbitrary arrays in spatial co- lored noise. A novel method for joint estimation of Doppler fre- quency, two-dimensional （2D） direction of departure and 2D direc- tion of arrival based on the propagator method （PM） for arbitrary arrays is discussed. A special matrix is constructed to eliminate the influence of spatial colored noise. The four-dimensional （4D） angle and Doppler frequency are extracted from the matrix and the three- dimensional （3D） coordinates of the targets are then calculated on the basis of these angles. The proposed algorithm provides a lower computational complexity and has a parameter estimation very close to that of the ESPRIT algorithm and the DOA-matrix al- gorithm in the high signal to noise ratio and the Cramer-Rao bound （CRB） is given. Furthermore, multi-dimensional parameters can be automatically paired by this algorithm to avoid performance degra- dation resulting from wrong pairing. Simulation results demonstrate the effectiveness of the proposed method.This paper addresses the problem of four-dimensional angle and Doppler frequency estimation for bistatic multiple-input multiple-output （MIMO） radar with arbitrary arrays in spatial co- lored noise. A novel method for joint estimation of Doppler fre- quency, two-dimensional （2D） direction of departure and 2D direc- tion of arrival based on the propagator method （PM） for arbitrary arrays is discussed. A special matrix is constructed to eliminate the influence of spatial colored noise. The four-dimensional （4D） angle and Doppler frequency are extracted from the matrix and the three- dimensional （3D） coordinates of the targets are then calculated on the basis of these angles. The proposed algorithm provides a lower computational complexity and has a parameter estimation very close to that of the ESPRIT algorithm and the DOA-matrix al- gorithm in the high signal to noise ratio and the Cramer-Rao bound （CRB） is given. Furthermore, multi-dimensional parameters can be automatically paired by this algorithm to avoid performance degra- dation resulting from wrong pairing. Simulation results demonstrate the effectiveness of the proposed method.

关 键 词：four-dimensional （4D） angle estimation Doppler frequency estimation propagator method （PM） multiple-input multiple-output （MIMO） radar arbitrary array spatial colored noise. 

分 类 号：TN958[电子电信—信号与信息处理]