数字射频存储器的旋转状态下GPS信号接收

Research of GPS Receiver in High Spinning Environment based on DRFM

目前国内对于GPS的应用大多是基于OEM板进行二次开发,无法对GPS信号进行深层次的分析和处理。主要研究基于数字射频存储器(DRFM)解决旋转状态下GPS信号的跟踪和定位问题,并利用Zarlink产品设计芯片级GPS接收机。介绍了数字射频存储器和GPS接收机的基本原理,提出利用数字射频存储器对GPS信号进行存储和处理,解决在某型火箭弹飞行旋转状态下GPS接收机的跟踪和定位问题。最后基于Zarlink公司芯片设计了GPS接收机。

In this paper, a GPS receiver based on DRFM is proposed to enhance receiving ability in the spinning environment. Firstly, the paper describe the theory of GPS and DRFM, and then propose to use DRFM in GPS receiver to deal with the spinning environment during the rocket flying. At last, a GPS receiver is designed based on Zarlink chipset and DRFM.