基于衰减排序递减的分布式MIMO雷达有限阵元快速选取

Fast Selection of Finite Antenna of Distributed MIMO Radar Based on Attenuation Sort Decreasing

针对分布式MIMO雷达在多目标跟踪任务下的阵元选取问题,为进一步降低系统复杂度,实现目标的快速跟踪,提出了一种基于衰减排序递减的阵元选取算法。在给定系统性能和阵元总量的约束下,以最少阵元数量为目标函数建立优化模型。依据信号传递衰减的大小,将涉及到的阵元排序,以全体阵元集为基础,依序逐次剔除阵元,直至系统性能刚好得到满足。仿真结果表明,所提算法能够提供与穷举算法接近的跟踪性能,并有效降低系统计算量。

To reduce system complexity and achieve fast target tracking,an algorithm of antenna selection based on attenuation sort decreasing is proposed.Under the constraints of given system performance and total number of antennas,the optimization model is established with the minimum number of antennas as the objective function.According to the magnitude of signal transmission attenuation,the antennas involved are sorted.Based on the whole antenna set,the antennas are removed in order and step by step until the system performance is just satisfied.The simulation results show that the proposed algorithm can provide tracking performance close to the exhaustive algorithm,and effectively reduce the system computation.