基于OTSU-CCA的杂波图检测器设计
Design of clutter map detector based on OTSU-CCA
黄勇 1魏子钦1
作者信息
摘要
对于常规的雷达目标杂波图检测技术来说,每一个方位-距离单元的背景功率水平估计是通过该分辨单元内连续扫描周期样本的递归更新来得到的,然而,当该分辨单元的连续扫描周期样本中存在大量干扰目标样本时,这种估计方法失效.对此,本文将空域恒虚警中的样本筛选技术借鉴到时域恒虚警中,设计了一种基于OTSU-CCA的杂波图检测器,通过剔除连续扫描周期样本中可能存在的干扰目标样本来提高背景功率水平估计的准确性,进而提升杂波图的检测性能.
Abstract
For the conventional radar target clutter detection technology,the background power level estimation of each azimuth-distance unit is obtained by the recursive update of the continuous scanning period samples in the resolving unit,but this estimation method fails when there are a large number of interfering target samples in the continuous scanning period samples of the resolving unit.In response to this,this paper draws on the sample screening technology in the spatial constant false alarm to the time domain constant false alarm,and proposes an OTSU-CCA-based clutter detector to improve the accuracy of background power level estimation by eliminating the potential interference target samples in the continuous scanning period samples,thereby enhancing the detection performance of clutter map.
关键词
杂波图/时域CFAR/OTSU/CCAKey words
clutter map/time-domain CFAR/OTSU/CCA引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据