中文摘要：

在载体旋转情况下,接收机接收到的导航卫星信号会附加较大的多普勒频移,导致接收机跟踪性能下降,甚至失锁。针对这一问题,提出一种使接收机能正常跟踪载体旋转情况下导航卫星的设计方案。该设计在传统环路基础上加入辅助通道,实现载体旋转转速的实时估计以辅助环路跟踪。经过仿真验证,改进之后的环路能够有效降低载体旋转造成的不良影响,达到正常信号的跟踪效果。

英文摘要：

In the case of carrier rotation, the navigation satellite signal received by receiver will have additional lager Doppler frequency shift, resulting in a decline in the receiver tracking performance and even failure. In order to solve this problem, a scheme is proposed to help the receiver track navigation satellite normally with rotating carrier. Based on traditional loop, the adding of auxiliary channel realizes real-time estimation of rotating speed to assist loop tracking. Simulation proves that the improved loop can effectively reduce the adverse effects caused by carrier rotation and achieve normal signal tracking.