【作者】 张毅；

【导师】 史林；

【作者基本信息】 西安电子科技大学 ， 电路与系统， 2009， 硕士

【摘要】 本文着重研究典型雷达信号的侦察分析和雷达干扰建模与仿真,为雷达系统仿真提供了重要的模块。本文对傅立叶变换、短时傅立叶变换、小波脊线加中值滤波估计二相编码信号的载频,对哈尔子波变换、小波脊线、基于双尺度连续小波变换识别二相编码信号的相位突变点,以及模糊函数、基于小波脊线和最小二乘法解线性调频、基于Wigner_Ville_Hough变换解线性调频估计法、基于成功失败法的线性调频信号去斜方法估计线性调频信号参数等方法进行了仿真分析。本文建立了射频噪声干扰、噪声调幅干扰、噪声调频干扰、噪声调相干扰、距离欺骗干扰、速度欺骗干扰、距离速度同步欺骗干扰等七种干扰的数学模型,模拟仿真了射频噪声干扰、噪声调幅干扰、噪声调频干扰、噪声调相干扰、距离欺骗干扰、速度欺骗干扰、距离速度同步欺骗干扰等七种干扰信号。更多还原

【Abstract】 This paper has mainly made some research about analysis and reconnaissance for typical radar signals, in addition, modeling and simulation for radar jamming, which is an important part of systemic simulation for radar.In this paper, Fourier transform, short_time Fourier transform, wavelet ridge and median filter has been used to estimate BPSK signal carrier frequency. And haar wavelet transform, wavelet ridge, two_scale continuous wavelet transform has been used to identify BPSK signal phase mutation point. As well as ambiguity function, wavelet ridge and least square solution, Wigner_Ville_Hough transform and the success of the failure of law LFM signal oblique method has been discussed to estimate parameters of LFM signal simulation. In addition simulation of those methods has been given in this paper.This paper has set up seven Mathematical models such as RF noise jamming, noise modulation jamming, noise FM radio jamming, noise phase-modulation jamming, distance deception jamming, speed deception jamming and distance synchronous speed deception jamming. This paper has also simulated seven jamming signals, such as RF noise jamming, noise modulation jamming, noise FM radio jamming, noise phase-modulation jamming, distance deception jamming, speed deception jamming and distance synchronous speed deception jamming.更多还原