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.
出处
《现代雷达》
CSCD
北大核心
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
