基于SOPC的嵌入式GPS接收机温启动快捕的研究  

The Research of Warm Start Based on SOPC for Embedded GPS Receiver Fast Acquisition

作　　者：胡辉[1] 沈翔[1] 吴超[1] 

机构地区：[1]华东交通大学信息工程学院,南昌330013

出　　处：《重庆理工大学学报（自然科学）》2012年第1期74-79,共6页Journal of Chongqing University of Technology：Natural Science

摘　　要：提高首次定位时间(TTFF)是研究现代GPS接收机所必须解决的一项关键技术。主要讨论了基于SOPC的嵌入式GPS接收机温启动的软硬件平台的搭建及设计,并用温启动方法实现了接收机的快速捕星和定位。相比冷启动方法,该方法既满足了定位速度要求,又具有较高时间准确度,使首次定位时间大为缩短。Time To First Fix is a key technology in the high dynamic GPS receiver＇s research and development.In this paper,the realization of the start hardware platform for embedded GPS receivers warm start base on SOPC technology are analyzed;the program flow of warm start method of receiver is designed and realizes the fast acquisition and position.Compared with the cold start method,this method not only satisfies the positioning speed requirements,and but also has high accuracy of time,significantly shortening the Time To First Fix.

关 键 词：GPS 温启动 快速定位 SOPC 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]