一种双基地MIMO雷达的相关目标定位方法

A Method for Coherent Multi-target Localization in Bistatic MIMO Radar System

多输入多输入(MIMO)雷达是最近几年提出来的一种新体制雷达,在探测目标空间位置时,若空间目标相关,很多算法将会失效。针对该问题,提出一种双基地MIMO雷达的相关目标定位方法,通过在MIMO雷达的发射端和接收端构造虚拟阵列,从而实现空间相关目标信号的解相关,得到空间目标正确的位置,且估计参数自动配对。该方法避免了阵列孔径损失,估计精度高。理论分析和计算机仿真结果验证了该算法的有效性。

The Multiple-Input Multiple-Output （MIMO） radar was proposed in recent years. Using MI- MO radar to detect the location of multi-target, a lot of algorithms are failure when the multi-target echo signals are coherent. Concerning this problem, a localization algorithm of coherent multi-target is presen- ted in bistatic MIMO radar. The algorithm constructs virtual array for both the transmit and receiver array to de-correlate the coherent multi-target echo signals, and then the location of multi-target can be ob- tained. The estimated parameters are automatically paired without additional paring computation. The proposed method avoids the array aperture loss and the performance of angle estimation is improved. The- oretical analysis and simulation results verify the effectiveness of this method.