卫星定位信号实时处理实验平台的设计与实现  

Design and Implementation of the SPS Signal Real-Time Processing Experimental Platform

作　　者：龚国辉[1] 李思昆[1] 

机构地区：[1]国防科技大学计算机学院,湖南长沙410073

出　　处：《计算机工程与科学》2006年第6期126-130,共5页Computer Engineering & Science

基　　金：国家863计划资助项目(2002AA1Z1480);国家自然科学基金资助项目(90207019)

摘　　要：本文设计了卫星定位信号实时处理实验平台。该平台接收卫星定位信号,经射频电路变换为数字中频信号后分为两路输出一路与FPGA开发板相接,用于数字卫星定位接收机的研制;另一路通过并行口EPP协议送至主机,用于软件卫星定位接收机的开发。该平台提供了卫星信号处理基础算法库和基础软核库,可有效支持卫星定位接收机的软硬件开发。目前已经基于该实验平台完成了数字GPS接收机原型的设计和软件GPS接收机原型的开发。平台的兼容性很好,只需更换射频电路,即可用于新一代卫星定位接收机的研究开发。应用效果表明,使用该平台可显著提高开发效率和质量。A satellite positioning system （SPS） signal real-time processing experimental platform is designed in the paper. The platform receives and transmits SPS signals to a FPGA development board and a host computer, after converting them into digital IF signals by the RF circuit. The signals sent to the FPGA development board arc used to develop a digital SPS receiver, and the signals sent to the host computer is used to develop a software SPS receiver. The platform offers a fundamental SPS signal processing algorithm library and a fundamental soft-core library to efficiently support the software and hardware development of SPS receivers. The prototypes of the digital GPS receiver and the software SPS receiver have been developed based on the platform, which has high compatibility and can be used to develop new generation SPS receivers with the corresponding RF circuits. Application shows that the development efficiency and quality will be remarkably en- hanced with its help.

关 键 词：卫星定位系统 卫星定位信号处理 软件卫星定位接收机 数字卫星定位接收机 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]