北斗导航接收机的硬件设计与实现

The Hardware Design and Implementation of BD Navigation Receiver

北斗卫星导航系统的逐步完善加快了北斗导航接收机产业的发展。在研究北斗导航系统原理的基础上,提出了一种基于北斗卫星导航系统的导航接收机的硬件设计方案。该方案以北斗卫星导航性能需求为基础,以射频模块、FPGA和DSP为核心器件,集成各部分完成了接收机系统的硬件设计。在硬件设计基础上,设计了DSP的驱动程序。最后与接收机软件配合进行测试,测试结果表明该设计能够正确捕获跟踪北斗卫星信号,为用户提供准确的位置和速度等参数输出,可实现实时高精度定位。

With the gradual improvement of the BD （Beidou） navigation satellite system, the development of the Beidou navigation receiver industry is speeded up. Based on the principle of the Beidou navigation system, a hardware design for the navigation receiver is proposed in this paper. The RF module, FPGA and DSP are designed as the core devices in this paper, and each part is fused to complete the hardware design of the receiver system. On the basis of hardware design, the drivers of DSP are designed in this paper. By coordinating with the software of the receiver, this design which can correctly collect the signal of BD satellite is validated by the results of the experimental tests. The accurate parameters such as location and velocity can be provided to users by the receiver. Also real - time and high positioning precision can be achieved.