基于数学形态学的气象杂波抑制方法  

A Weather Clutter Suppression Method Based on Mathematical Morphology

作　　者：柴晓飞 罗丁利[1] 杨磊[1] 李雨鑫 CHAI Xiaofei;LUO Dingli;YANG Lei;LI Yuxin(Xi’an Electronic Engineering Research Institute, Xi’an 710100)

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2021年第3期53-58,共6页Fire Control Radar Technology

摘　　要：本文针对现有方法无法有效抑制气象杂波的问题,提出了一种基于数学形态学的气象杂波抑制方法。该方法将经过预处理之后的雷达距离-多普勒平面与形态学的图像处理方法相结合,如膨胀或腐蚀算法、两者的组合开运算或闭运算等,能够较准确地获得气象杂波所在区域范围,再结合雷达恒虚警检测后的平面,可剔除由于气象杂波造成的虚警点,实现对气象杂波的抑制。该方法运算量小,实现简单,较好地消除了气象杂波对雷达系统的影响。Weather clutter in radar cannot be suppressed effectively using available suppression methods.In this paper,a novel weather clutter suppression method based on mathematical morphology is proposed.The proposed method combines the radar range-Doppler plane obtained after data preprocessing with some morphological image processing methods,such as erosion,dilation,opening,and closing operation,so that the accurate scope of the weather clutter region can be obtained.Then the plane obtained after radar CFAR detection can be used to eliminate the false alarm plots caused by the weather clutter,so that the weather clutter is suppressed effectively.The proposed method features small computation load and simple implementation.

关 键 词：气象杂波 形态学 图像处理 杂波抑制 

分 类 号：TN957.51[电子电信—信号与信息处理]