基于变参数广义结构的距离扩展目标检测方法

Generalized Range-Spread Target Detection Method Based on Variable Parameter

针对特定杂波背景下的最优或次优检测器结构难以适应过渡杂波环境的问题,首先,给出基于变参数广义结构的距离扩展目标检测器,通过调整参数来适应杂波特性。其次,确定检测器最佳参数的经验公式,经验公式符合数值结果。最后,利用仿真试验分析检测器的检测性能。仿真结果表明,在介于高斯和复合高斯杂波之间的过渡环境中,提出的检测器比现有检测器具有更加优异的目标检测性能,对杂波非高斯程度时空渐变性具有较强的适应能力。

This paper addresses the problem that some optimum or suboptimum detectors are difficult to adapt to the transient clutter environment. Firstly,a generalized range-spread detector based on variable parameter is proposed,and it adapts to the clutter characteristics by adjusting the parameter. Secondly,the empirical formula of the optimal parameter of the detector is determined,and it conforms to the numerical result. Finally,the performance of the detector is analyzed by the simulation experiment. The simulation results show that the proposed detector,which has adaptive properties for the temporal and spatial gradation,exhibits better detection performance than existing detectors in transient clutter environment between Gaussian and non-Gaussian clutter.