一种特征增量门限MIMO阵列多目标检测方法  

Multi-target Detection with MIMO Array Based on Eigen Increment Threshold

作　　者：贾继鹏[1] 

机构地区：[1]中国人民解放军91245部队80分队

出　　处：《舰船电子工程》2013年第4期41-43,共3页Ship Electronic Engineering

摘　　要：正交波形MIMO雷达各阵元发射相互正交的波形信号,采用低增益的宽波束照射探测空域。其基本思想是通过波形分集技术,分别获取空间分集和虚拟孔径以提高雷达的探测性能。利用信号和噪声特征值大小以及特征增量之间的差异,提出了MIMO阵列特征增量门限(Eigen Threshold,EIT)多目标检测方法(MIMO-EIT),并与常规阵列算法作比较,通过计算机仿真说明MIMO-EIT方法多目标检测能力优于传统相控阵EIT方法。In orthogonal waveform MIMO radar, all elements transmit orthogonal waveforms and cover the surveillance area with love gain and wide beams. The waveform diversity technique is used in orthogonam waveform MIMO radar to obtain spatial diversity and virtual sperture to improve the detection performance. In the paper, an approach to detect multi-target with MIMO array based on eigen increment thresthold is proposed using the difference between gigen value and eigen increment of signal and noise, and then the proposed method is com pared with the traditional method. Simulation results show that the multi-target detection performance of the proposed method is better than the traditional method.

关 键 词：多输入多输出 特征门限法 目标检测 

分 类 号：TN911.7[电子电信—通信与信息系统]