介绍了Java编程语言的J2ME平台向凌阳SPCA556G平台的移植．在设计过程中首先 对开发平台，GPS的定位原理，NMEA0183协议进行了了解．然后深入的分析了J2ME平台的结构。根据KVM和MIDP的各自特性分别进行移植，最终实现J2ME的移植要求．-Introduced the Java programming language of the J2ME platform to platform, porting Sunplus SPCA556G. In the design pro

顾名思义，gps原理和应用是gps原理和应用的很好的资料，想了解gps的可以读一下。-As the name suggests, gps is a gps theory and application of theory and application of good information, would like to know gps that can be read.

GPS卫星定位系统里程统计论,对产生误差的情况进行了详细描述-GPS satellite positioning system mileage statistical theory