MIMO雷达双边约束自适应波束形成  

Adaptive Beamforming with Two-sided Constraints for MIMO Radar

作　　者：江伟伟[1] 唐霜天[1] 涂刚毅[1] 

机构地区：[1]中国船舶重工集团公司第七二四研究所,南京210003

出　　处：《现代雷达》2013年第9期36-39,共4页Modern Radar

基　　金：总装装备预研项目;中船重工装备预研项目;船舶工业国防科技预研基金项目

摘　　要：提出基于虚拟阵列的MIMO雷达双边约束自适应波束形成算法。该算法将联合线性约束条件分解成两个线性约束条件的Kronecker积,分别计算接收和发射阵列的两组低维权值,并且从收、发阵列方向导向矢量间的映射关系出发,导出发射阵列权值的计算公式。与仅利用接收阵列的自适应波束形成算法相比,该算法在强干扰处的零值深度更深、角度分辨率更高;与联合约束自适应波束形成算法相比,计算的复杂度大大降低。仿真试验验证了算法的有效性。An adaptive beamforming algorithm with two-aided constraints for MIM0 （multiple-input multiple-output） radar was proposed. It＇s based on virtual array. This algorithm decomposes the combined linear constraints into a kronecker product of two linear constraints, and finds two small dimensional weight vectors. And starting from mapping relation between the transmitting ar- ray steering vector and the receiving one, a formula for calculating the weight of the transmitting array was deduced. Compared with the case only with receiving array, there are deeper nulls in the directions of the strong interferences and higher angular resolution of this algorithm. Compared with the case with combined constraints, the computational complexity of this algorithm is significantly reduced. Simulation results certify the validity of the algorithm.

关 键 词：MIMO雷达 虚拟阵列 双边约束 自适应波束形成 

分 类 号：TN958[电子电信—信号与信息处理]