基于L型MIMO雷达二维DOA估计新算法  

New Algorithm for 2-D DOA Estimation Based on L Shaped MIMO Radar

作　　者：郭艺夺[1] 张永顺[1] 童宁宁[1] 沈堤[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800

出　　处：《雷达科学与技术》2010年第5期412-416,共5页Radar Science and Technology

摘　　要：将MIMO思想应用于L型阵雷达,建立了L型MIMO雷达信号模型,并在此基础上,根据DOA矩阵法,利用MIMO体制雷达产生的虚拟子阵列来构造一个二阶统计量,从而得到了目标方位角和俯仰角的闭式解。该算法不涉及多维谱峰搜索,因此具有较小计算量;此外,该算法估计出的目标的方位角和俯仰角可自动配对,不存在参数的配对问题。计算机仿真结果证明了本文算法的正确性和可行性。The signal model of L shaped MIMO radar is established through applying the MIMO（Multi-ple Input Multiple Output）idea to the L shaped array radar.Based on the foregoing model,we construct a two-order statistic using virtual arrays generated by the MIMO system according to DOA matrix method,then the closed-form solutions of azimuth angle and elevation angle can be achieved.Because of not referring to multi-dimensional peak searching,computation load of the algorithm is low.Furthermore,the problem of pair matching does not exist in the method.The correction and efficiency of the proposed method are verified by the computer simulation results.

关 键 词：MIMO雷达 L型阵 二维DOA估计 DOA矩阵法 

分 类 号：TN957[电子电信—信号与信息处理] TN958[电子电信—信息与通信工程]