雷达科学与技术2011，Vol.9Issue(3)：237-242,6.
基于MIMO雷达虚拟阵列的二维波达方向估计算法
An Algorithm of 2-D DOA Estimation Based on MIMO Radar Virtual Array
摘要
Abstract
A novel algorithm of 2-D DOA(direction of arrival) estimation is proposed based on single echo signal of MIMO(multiple input multiple output) radar with L-shaped collocation. Two matrices with designated relationship are constructed by using the data of virtual arrays formed by single echo signal. And a DOA matrix is also constructed using the two matrices. Then the closed-form solution of the azimuth and elevation angle is derived according to the relationship of the eigenvalues and eigenvectors of the DOA matrix. Because of not referring to 2-D peak searching, the computational load of the algorithm is low, and the problem of pair matching does not exist in the method. Furthermore, the maximum number of the targets that can be estimated by the method would be equal to or more than the number of receive antennas when the number of transmit antennas is more than two. The correction and efficiency of the proposed method are verified by the computer simulation results.关键词
MIMO雷达；二维波达方向估计；单次回波信号；虚拟阵列/波达方向矩阵法Key words
MIMO radar/ 2-D DOA estimation/ single echo signal/ virtual array/ DOA matrix method分类
信息技术与安全科学引用本文复制引用
郭艺夺,张永顺,童宁宁,沈堤..基于MIMO雷达虚拟阵列的二维波达方向估计算法[J].雷达科学与技术,2011,9(3):237-242,6.基金项目
国家自然科学基金(No.60601016) （No.60601016）
