非高斯杂波下分置天线MIMO雷达的动目标检测*

目前关于分置天线MIMO雷达目标检测的研究多是假定杂波是服从高斯分布的，实际中非高斯杂波往往更能精确描述现代雷达环境下杂波的统计。考虑几种在高斯杂波模型假设下设计的检测器，构造了服从Log-Nomal分布的非高斯杂波模型。分别针对高斯杂波和非高斯杂波模型，对分置天线MIMO雷达和相控阵雷达做了系统性能曲线仿真，并在非高斯杂波模型下，对不同目标速度下的各雷达系统的检测器性能进行仿真，最终通过对比得到了一些有关在非高斯杂波背景下MIMO雷达性能的结论。

Moving target detection in non-Gaussian clutter for MIMO radar with widely separated antennas

In most research on target detection employing MIMO radar with widely separated antennas, the clutter is assumed to be Gaussian distributed. However, in modern radar environment, the statistical character of the clutter is more likely to be non-Gaussian, so that a non-Gaussian clutter model is more accurate. This paper considered several detectors designed for Gaussian clutter model, and assumed the Log-Normal (LN) distribution for the non-Gaussian clutter. Analyzed the receiver operating characteristic (ROC) curves for MIMO radar and phased array radar systems for both Gaussian and non-Gaussian clutter. Further, in the case of non-Gaussian clutter, tested the detection performances of different radar systems. Finally, conclusions are drawn based on the simulation results.