摘要
本文描述了GPS/BDS机载设备的总体架构和详细设计方法。基带处理部分,给出了基于PMF-FFT的捕获算法。基带处理电路主要完成对射频通道传送过来的中频信号进行采样、数字滤波、信号处理、功能解算等功能。GPS/BDS机载设备具备兼容GPS、BDS和GLONASS卫星导航系统的能力;具备卫星导航系统历书、星历、原始测量数据输出、RAIM处理、差分处理、多种数据格式输出、BIT系统自检、工作状态提示等能力。
This paper describes the structure and design method in detail for the GPS/BDS of airborne equipment. In the baseband processing parts, the acquisition algorithm based on PMF-FFT is presented. Baseband processing circuit mainly complete the collection, the digital filtering, the signal processing and function calculating of intermediate frequency signal that from RF channel. GPS airborne equipment has the ability of satellite navigation system, meanwhile has the capability of compatible with GPS, BDS and GLONASS. The equipment has ability of receiving almanac and ephemeris of satellite navigation system, the original measurement data output, RAIM processing, difference processing, a variety of data format output, BIT system self-checking, status display and so on.
出处
《现代导航》
2016年第1期11-16,共6页
Modern Navigation
基金
陕西省科技统筹创新工程计划项目
课题编号:2013KTZB01-02-02
