摘要
The schemes and effects of electronically jamming GPS’s C/A code receivers are studied by using CW as the narrow band jamming signal and BPSK signal modulated by Gold code which is incoherent to that adopted by GPS as the wide band one. By simulating with Monte Carlo method and programming in Matlab language, the various jamming results in terms of bit error rate under several jamming scenarios are obtained. Through analyzing the simulation results and quantitative dependences of jamming effects on the distance from jammer to GPS receiver and the jammer’s height over ground, it is concluded that jamming with wide band jammer is much more effective than that with narrow band one.
研究对采用C/A码的GPS接收机实施电子干扰方法及干扰效果问题 .分别以连续波作为窄带干扰信号 ,以非相关Gold码调制的BPSK信号作为宽带干扰信号 ,利用数学建模和仿真的方法进行研究 .通过利用Matlab语言编程 ,进行蒙特卡罗仿真分析 ,得到各种干扰下的误码率 .通过分析干扰效果与干扰机功率及与干扰机至接收机距离、高度的定量关系得出
基金
MinisterialLevelAdvancedResearchFoundation
