GPS信号信噪比对接收机捕获性能的影响  

Influence of GPS Signal-to-Noise Ratio on GPS Receiver's Acquisition Performance

作　　者：崔哲[1] 阎鸿森[1] 惠卫华[2] 杜乃鹏[1] 李波[1] 

机构地区：[1]西安交通大学电子与信息工程学院,西安710049 [2]中国科学院国家授时中心,陕西临潼710600

出　　处：《时间频率学报》2004年第2期120-128,共9页Journal of Time and Frequency

摘　　要：对于在强卫星信号的干扰下GPS接收机对弱卫星信号的捕获的性能进行了分析。对于强信号对弱信号的干扰进行了推导,讨论了几种能够改善接收机捕获性能的方法,并进行了相应的仿真,仿真的结果表明这几种方法是可行的。The GPS receiver's acquisition performance to the weak satellite signals,that are contaminated by the strong interfering signals,is analyzed.The interference caused by the strong signals is deduced.Some methods capable of improving the acquisition performance are discussed and the simulation results prove the methods to be available.

关 键 词：GPS信号 接收机 捕获 信噪比 

分 类 号：P228.4[天文地球—大地测量学与测量工程]