组件式软件GPS接收机的研究与设计  

Research and design of software GPS positioning component

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：《计算机应用》2005年第12期2938-2939,2942,共3页journal of Computer Applications

基　　金：国家863计划资助项目(2002AA1Z1480)

摘　　要：设计了面向嵌入式系统易于集成的组件式软件GPS接收机,有三种工作模式:自主式、快照式和辅助式,根据应用环境的变化,该接收机灵活切换工作模式,可在占用寄主CPU时间很少和功耗很低的情况下提供稳定的定位信息。现场测式结果表明,该组件式软件GPS接收机具有可靠的稳定度和较好的定位精度,可以满足物流运输和车辆监控的需要。A software GPS positioning receiver which can be easily integrated into embedded system was designed. The receiver has three work modes： autonomous, snapshot and assisted. According to the availability of GPS signals, the receiver changes work mode neatly, so as to offer steady position information with low power consumption and low CPU burden. Field tests were done, and the results indicated the good performance of the positioning receiver.

关 键 词：GPS 软件GPS 定位组件 嵌入式系统 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]