摘要
为解决GPS欺骗干扰信号注入目标接收机效率不高的问题,设计了一种基于构建拒止环境掩护欺骗信号注入的GPS欺骗干扰模式。分析了拒止环境下信号载噪比变化情况,研究了该干扰模式欺骗信号的捕获和跟踪性能,并结合GPS信号和接收机参数的典型值,计算了为构建欺骗干扰所需的拒止环境不同干信比对应的带限白噪声信号功率,从欺骗信号的捕获和跟踪的角度证明了其可行性,该文最后给出了该模式的干信比和带限白噪声信号功率的一般性限定条件。
In order to cope with the problem of low efficiency of GPS spoofing-signal injection, a GPS spoo- fing pattern based on denial environment which covers for signal injection is proposed. With an analysis on exchange of signal carrier noise ratio, the acquisition and tracking of spoofing signal in this pattern is dis- cussed. Given representative parameters of GPS signal and receiver, the preferential signal ratio of spoofing signal to authentic signal and power of band-limited white noise are calculated for the requirement of con- structing denial environment. This jamming pattern is proved from the perspective of acquisition and track- ing of spoofing signal, at last the general limit of signal ratio of spoofing signal to authentic signal and power of band-limited white noise are deduced.
出处
《空军工程大学学报（自然科学版）》
CSCD
北大核心
2015年第6期27-31,共5页
Journal of Air Force Engineering University(Natural Science Edition)
基金
国家自然科学基金资助项目(61273049)
关键词
GPS欺骗干扰
拒止环境
信号注入
捕获跟踪
GPS spoofing
denial environment
signal injection
acquisition and tracking
