宽带噪声调频信号对脉冲压缩的干扰机理研究  

Jamming mechanism of wideband noise FM signals to pulse compression

作　　者：孙清清[1,2] 郑坤 曹旭源 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：《雷达与对抗》2016年第2期30-34,65,共6页Radar & ECM

基　　金：国防基础科研基金项目(B1120133036);电子信息控制重点实验室基金项目

摘　　要：为了分析宽带噪声调频信号对脉冲压缩滤波器的干扰效应,引入随机微分的理论,建立了调频噪声干扰信号所满足的福克-普朗克(Fokker-Planck)方程,求解得出干扰信号通过脉压滤波器输出时域包络的概率密度分布函数。基于干扰信号输出的分布函数,采用"等效视数"和幅度压制系数作为干扰效果评估指标,仿真分析了噪声调频干扰信号的带宽、幅度以及频率引导误差对干扰效果的影响。The effect of the jamming on radar signal processing is studied, which has a significant impact on the design of the jammer. In order to analyze the jamming effect of the wideband noise FM signals to the pulse compression filter, the stochastic differential theory is introduced, and the Fok- ker-Planck equations of the FM noise jamming signals are established. The calculation results indi- cate that the jamming signals output the probability density distribution function of the time-domain envelop via the pulse compression filter. Based on the distribution function output by the jamming signals, with ＂equivalent number of looks＂ and the amplitude suppression coefficient as the evalua- tion indexes of the jamming effect, the effect of the bandwidth, amplitude and frequency guiding er- ror of the noise FM jamming signals on the jamming effect is simulated and analyzed.

关 键 词：干扰机理 脉冲压缩 噪声调频干扰 随机微分 

分 类 号：TN97[电子电信—信号与信息处理]