基于SIM868+STM32的定位代码

基于部标808协议的GPS平台压力测试工具，通常用于平台压测用，检测GPS服务器解析平台测试压力的工具

几个比较经典的关于GPS应用的国外PPT，比较难得，值得珍藏-Comparison of several classic GPS applications on foreign PPT, relatively rare, it is worth Treasures

GPS主系统是居心叵测的老美发射运行的卫星系统，包含了27颗能持续发送地理位置海拔高度的卫星，24个正常使用，3个备用，这些卫星平均分布运行在六个轨道上。一般来说，在地面-GPS is the main system is very much ill-old US-run satellite launch system, contains 27 to continue to send location altitude satellites, 24 of normal use, three back-up, the average distribution of these satellites orbit in six runs. Generally speaking, on the ground

GPS信号捕获程序,采用串行搜索算法,并自带三段中频采样的数据.-GPS signal acquisition procedures, using serial search algorithm, and bring their own copies of the three IF sampling data.

fm调制和解调，matlab语言实现，可以改变fs，fc，ft-fm modulation and demodulation, matlab language, can change the fs, fc, ft

gps中CA码在matlab环境下编译产生-gps in the CA code in matlab environment to compile generated

RTK信息上传到服务器,然后其他设备通过GPRS网络访问服务器传输上来的数据，此代码是服务器端的代码，用来在服务器端接收和分发RTK数据！

汽车GPS管理系统 包括调动-Automotive GPS Management System, including the mobilization of

基于Internet的水利工程地理信息系统开发-Internet-based Geographic Information System water project development