雷达有源干扰的建模仿真及特征参数提取  

Simulation of Radar Active Jamming and Extraction of Characteristic Parameters

作　　者：张统兵 袁子乔[1] 王辉辉[1] ZHANG Tongbing;YUAN Ziqiao;WANG Huihui(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》2022年第4期107-116,共10页Fire Control Radar Technology

摘　　要：有源干扰作为雷达面临的主要威胁之一,特别是随着数字射频存储技术(DRFM)的快速发展,产生了多种压制和欺骗效果良好的干扰,因此干扰识别和抗干扰已经成为雷达研制中的一项重要工作。本文研究了常见的压制式干扰和多种类型的欺骗型干扰以及复合干扰的产生机理,提取了各种类型干扰在时域和频域的多个特征参数,并在不同的干噪比下研究不同特征参数对干扰的可分性,进行了建模仿真,最后在总结了特征参数可分性的基础上建立了判决树分类准则。研究结果表明选定的特征参数对不同的干扰区分效果良好。Active jamming is one of the main threats to radar.Especially with the rapid development of DRFM,there are varieties jamming with good effect on suppression and deception,so jamming identification and anti-jamming have become an important factor in radar R&D.In this paper,the generation principles and mechanisms of common compressive interference and different types of deception interference as well as composite interference were studied,and the extraction of several characteristic parameters of various types of interference in time domain and frequency domain,as well as the separability of different parameters to different types of interference under different JNR were also analyzed.Finally modeling and simulation were carried out.The classification criterion of decision tree was established based on the summary of the separability of characteristic parameters.The results showed that the selected characteristic parameters can distinguish different interference effectively.

关 键 词：雷达有源干扰 特征参数 分类 仿真 

分 类 号：TN95[电子电信—信号与信息处理]