摘要
本文讨论了基于ARM920T的嵌入式GPS系统实现方法,分析并改进了Linux操作系统下GPS定位模块、原始报文解析方法以及驱动程序的设计方法;设计并实现了基于ARM920T处理器的嵌入式GPS接口模块,在基于S3C2410AL-20开发板上实现了星型状态转换的基带信号处理方法;通过解析状态的数据-信息标志的依赖关系,实现了星型状态转换,从而减少了GPS模块的响应时间,最终实现快速、准确的定位。
The paper discusses a method of design and implementation for the embedded GPS system based on ARM920T. The position module, original message parsing method and the driver of GPS based on the Linux operating system are analyzed and improved. The interface of the embedded GPS based on ARM920T is designed and implemented. The method of baseband signal processing for star state transition based on S3C2410AL-20 is realized. Star state transition by parsing the dependence relations between data-information sign state can reduce the response time of the GPS module, and finally a rapid and accurate position can be obtained.
出处
《计算机工程与科学》
CSCD
2008年第3期126-129,共4页
Computer Engineering & Science
