集中式MIMO雷达发射方向图快速设计方法  

Fast Transmit Beampattern Synthesis for MIMO Radar with Colocated Antennas

作　　者：胡亮兵[1] 刘宏伟[1] 杨晓超[1] 吴顺君[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,西安710071

出　　处：《电子与信息学报》2010年第2期481-484,共4页Journal of Electronics & Information Technology

摘　　要：该文提出了任意发射方向图可以由一组基波束合成的思想。基于该思想,先对集中式MIMO雷达阵列进行切比雪夫幅度加权构造出一组具有较低副瓣的基波束,然后利用线性规划来快速求解出构成方向图的基波束和其比例系数。与已有的半正定二次规划方法相比较,采用线性规划综合出来的发射方向图具有较低的空域副瓣和较小的空域互相关,并且计算时间较快。An idea that an arbitrary transmit beampattern can be equal to a sum of the most basic beams is proposed. Based on the idea and using the Chebyshev weighting technique, the most basic beams are constructed with low side-lobes for a Multiple Input Multiple Output （MIMO） radar system with colocated antennas. The ratios of these beams are fast obtained by solving an effective linear programming. Compared with the existing Semidefinite Quadratic Programming （SQP） method, the designed transmit beampattern can achieve lower spatial side-lobes and cross-correlation. Furthermore, it is faster to design the transmit beampattern.

关 键 词：MIMO雷达 发射方向图综合 基波束 线性规划 

分 类 号：TN957.51[电子电信—信号与信息处理]