空域滤波抗干扰性能的新型评定方法

A New Assessment Method for Interference Suppression Performance of Spatial Domain Filtering

本文阐述了空域滤波抗干扰性能的新型评定方法—基于度量干扰失效角域因子的评定方法,干扰失效角域可直观显示空域滤波的有效角域,干扰失效角域因子可定量给出空间任意来向干扰情况下空域滤波有效的概率。新型评定方法比基于零陷深度的评定方法更全面、更确切,适用于空域滤波的抗干扰性能评定、关键参量优选。

This paper dissertates a new assessment method for interference suppression performance of spatial domain filtering,which is based on the index of angular region of disabled interference.The angular region of disabled interference can display the effective angular region of spatial domain filtering,and its index can indicate quantificationally the percentage of effective angular region of spatial domain filtering.This new assessment method is superior in generality and accuracy to the former one based on the null depth.Then,this new method can be applied in the assessment of performance and the selection of key parameter.