伪卫星接收机基带部分的设计与实现

The Design and Realization on the Digital Platform of PL Receiver

以GPS为代表的卫星导航系统受定位精度的约束,需外加在地面的伪卫星提供辅助定位信息,确保定位精度。提出了基于软件无线电思想的伪卫星接收机基带部分的设计方案,同时给出了三种硬件实现方式:(1)基于DSP的硬件实现;(2)基于FPGA的硬件实现;(3)基于ACM的硬件实现。同时针对这三种实现方式从硬件资源,算法实现两个角度进行了比较。

The satellite navigation systems such as GPS are restrained by the precision of orienting, the accuraey of positioning can be greatly improved by PL, which offers the auxiliary information of positioning. This paper proposed the design on digital platform of PL receiver. And it provides three ways of realizing ： （1）The digital platform based on DSP ; （2）The digital platform based on FPGA ; （3）The digital platform based on ACM. Comparison of resources of the hardware and the algorithm to these three ways of realizing is also presented in ths paper.