摘要
本文基于机载多通道试验雷达对海回波数据,分析了海杂波在多通道雷达系统中的空时特性,并基于分析结果设计了STAP在海杂波抑制中的应用流程。首先采用能量和排序剔除APR综合算法实现非均匀样本的选择,再通过基于距离分段的mDT-STAP算法实现了对海杂波距离-多普勒-空域的局部化,实现了算法对海杂波的适应性。最后通过某机载雷达试验数据的处理验证了算法的有效性。
Based on the sea echo data of a multi-channel airborne radar,the space-time characteristics of sea clutter are analyzed.Then,an implementation process of space-time adaptive processing(STAP)for sea clutter suppression is proposed based on the obtained characteristics.Firstly,the samples of clutter are refined by considering energy of samples and employing the sorted refining APR algorithm.Secondly,range segmented mDT-STAP is performed for range-Doppler-airspace localization of sea clutter,adapting the proposed method to sea clutter.Finally,the processing results of real echo data from a multi-channel airborne radar prove the effectiveness of the proposed method.
作者
王金峰
刘仍莉
顾庆远
WANG Jinfeng;LIU Rengli;GU Qingyuan(The 38th Research Institute of CETC,Hefei 230088;Key Laboratory of Aperture Array and Space Application,Hefei 230088)
出处
《火控雷达技术》
2023年第3期25-30,42,共7页
Fire Control Radar Technology
关键词
空时处理
海杂波
动目标
样本选择
距离分段
space-time processing
sea clutter
moving target
sample selection
range segmentation
