摘要
通过分析GPS信号模型,根据接收机的码跟踪环、载波跟踪环抖动门限确定等效载波-噪声功率密度比门限值,最后由干扰信号链路公式得出干扰源距离与干扰功率的关系并进行了仿真验证.
The establishment of GPS declared a new era of Global Navigation Systems of Satellite, and these systems have demonstrated their important roles both in civil and military applications but also facing the ever-increasing interferences. In this paper, we analysis and simulates the effect of wide-band noise interference on civil GPS Receiver. Originated from GPS signal model, the relationship between interference range and interference power is obtained from the interference signal link formula based on the threshold values of receiver＇s code and carrier tracking loop. Finally simulation result is provided to verify its alidity and show interference coverage vs interference power.
出处
《河南科学》
2006年第1期69-72,共4页
Henan Science
基金
国家自然科学基金资助项目(60272086)
关键词
导航
GPS
干扰
宽带噪声
Navigation
GPS（Global Positioning System）
interference
wide-hand noise
