摘要
介绍了以FPGA和DSP为主要芯片的双模接收机的整体方案设计。系统主要分为三个模块:射频前端模块、基带信号处理模块和定位解算模块。系统充分利用FPGA和DSP各自的优势完成了接收机对卫星信号的捕获、跟踪和定位解算功能。通过粗略的本地时间、本地位置和有效星历进行发射时间预测的快速定位,在不经过导航电文位同步和帧同步的情况下,对信号发射时刻进行预测,实现快速定位。
In the paper,the overall scheme design of dual-mode receiver with FPGA and DSP as the main chips is designed.The system is mainly divided into three modules:RF front-end module,baseband signal processing module and positioning solution module.Fully utilize the respective advantages of FPGA and DSP to complete the receiver's functions of capturing,tracking and positioning the satellite signal.Fast positioning of the transmission time prediction through rough local time,local position and effective ephemeris,without the navigation message position synchronization and frame synchronization,the signal transmission time is predicted to achieve positioning rapidly.
作者
李思聪
王康谊
Li Sicong;Wang Kangyi(North University of China,Taiyuan 030051,China)
出处
《单片机与嵌入式系统应用》
2021年第11期89-91,共3页
Microcontrollers & Embedded Systems
