摘要
结合现代真正导航对抗日趋激烈的背景,在对GPS的干扰策略分析的基础上指出宽带压制干扰是目前较为有效的干扰模式;在直接扩频序列信号理论框架下建立了对GPS干扰信号分析的理论模型,在此基础上对GPS信号的宽带压制干扰技术的干扰功率、最大干扰距离以及不同干扰模式下的误码率等参数进行了分析、计算和仿真,从扩频通信信号处理角度描述并证明了GPS信号宽带压制干扰的干扰效能。仿真结果表明:直接采用GPS伪码调制的宽带干扰信号是一种效率较高的干扰方式。
Considering the counterwork facing the navigational system in naval warfare,the wideband suppress jamming was presented as an effective pattern based on analyzing the strategy of GPS jamming.The theoretic model for analyzing the jamming performance was established based on the theory of DSSS.The model was used to analyze and simulate the power of jamming,the maximum efficiency distance of jamming and the error rate caused by jamming in the case of the wideband suppressing jamming on GPS.The performance of wideband suppressing jamming on GPS was testified according to DSSS processing theory.The simulated results show that the pattern of wideband suppressing jamming modulated with PRN of GPS is an effective way to GPS receiver.
出处
《海军工程大学学报》
CAS
北大核心
2010年第6期30-34,55,共6页
Journal of Naval University of Engineering
基金
国家自然科学基金资助项目(40774002)
关键词
GPS
宽带压制干扰
干扰距离
干扰功率
误码率
GPS
wideband suppressing jamming
efficiency distance of jamming
power of jamming
error rate
