对雷达CFAR处理的压制干扰效应分析  

Suppression Effects Analysis of DRFM Jamming on Radar CFAR Detection

作　　者：郑坤 朱晓芳[1,2] 王洪[2] 

机构地区：[1]电子信息控制重点实验室,成都610036 [2]电子科技大学电子工程学院,成都611731

出　　处：《电子信息对抗技术》2016年第1期33-37,共5页Electronic Information Warfare Technology

基　　金：中国博士后科学基金(2014T70858);国防基础科研基金项目(B1120133036)

摘　　要：研究了DRFM干扰对雷达目标CFAR检测的压制作用和噪声干扰与DRFM干扰共存时的干扰效应问题。在单元平均CFAR检测算法下,首先介绍了噪声对雷达检测门限、虚警概率以及目标信号检测概率的影响,然后详细分析了DRFM干扰和噪声与DRFM干扰组合时对目标检测的压制作用,得出了检测门限和检测概率的变化规律,确定了压制干扰的功率边界条件以及噪声与DRFM干扰的功率平衡准则。The suppression effect of DRFM jamming on the target detection and power allocation are studied when blanket jamming and DRFM interference coexist. Firstly, the influences on de- tection threshold, false alarm probability and detection probability are discussed under CA- CFAR detection. Then, the changes are analyzed caused by the suppression effect and some boundary conditions are deduced which power is required to meet. Finally, the power balance of blanket noise jamming and DRFM jamming are also discussed based on boundary conditions.

关 键 词：恒虚警检测 数字射频存储干扰 干扰效应 边界条件 

分 类 号：TN972[电子电信—信号与信息处理]