摘要
本文以雷达典型信号线性调频信号LFM(Linear Frequency Modulation)为研究对象,对卷积调制灵巧噪声干扰以及间歇采样循环转发干扰进行了原理分析并且进行了建模仿真,对每种干扰的效果进行了分析。并对每种干扰信号的时频域二维特征采用Choi-Williams分布进行研究,提取每种干扰有效地时频域特征,有利于研究灵巧干扰的对抗方法以及如何提高灵巧干扰的效果。
The paper research on Linear Frequency Modulation(LFM)radar signal,principle analysis and modeling simulation for the convolution modulation smart jamming and interrupted-sampling repeater jamming.This paper analyzes the influence on each type of jamming model.Choi-Williams distribution is taken for each jamming signal analysis Time-frequency 2-dimensional distribution characteristic,and extracting the effective time-frequency domain characteristic of each type of jamming is conducive to study the counter measure of smart jamming and how to improve the effect of smart jamming.
作者
李辰梓
余建宇
徐伟
郝万兵
LI Chenzi;YU Jianyu;XU Wei;HAO Wanbing(Xi’an Electronic Engineering Research Institute,Xi’an 710100)
出处
《火控雷达技术》
2019年第3期42-47,共6页
Fire Control Radar Technology
关键词
卷积调制
灵巧干扰
间歇采样循环转发
时频分析
convolution modulation
smart jamming
interrupted-sampling and repeater
time-frequency analysis
