利用GPS作为时钟源实现精确计时，方便实用，定时精度达到300ns以内。...

上一个的继续,连续有九个压缩文件,大家可以打开解压后自己慢慢享用,这个都是本人调试通过了的,希望共同进步!-A continuation of a row has nine compressed file, everyone can open their own after extracting slowly to enjoy, this is my debug adopted, and I hope common progress!

NMEA parser sorce codes for MFC

gsm at gsm at gsm at gsm at-gsm at

手机上通过蓝牙串口协议读取GPS接收仪的GPS数据。-Mobile phone via Bluetooth serial port GPS receiver to read the agreement of the GPS data.

精密星历是按照15min的间隔给出卫星位置，要想获取任意时刻卫星的位置，必须对精密星历进行内插，本程序实现了通过读取SP3文件，对卫星的星历进行内插计算。

GPS导航的原理，详细讲述GPS卫星导航的原理，及地面接收系统。-The principle of GPS navigation, GPS satellite navigation and a detailed account of the principle, and the ground receiving system.

NGN－3G核心部件SGSN的代码实现，适合初学者学习，有详细的说明-NGN-3G core component code SGSN realize is suitable for beginners to learn, have a detailed description of

目前GPS（全球定位系统）定位应用市场日趋成熟，正在进入应用的高速发展时期。本文以一款EverMore公司的GM-X205GPS接受模块为例，介绍了其数据格式，以及应用PIC16F874单片机RS232串口进行数据接收的程序-current GPS (Global Positioning System) location-based applications market becomes more mature, Applications are entering a period of rapid development. A EverMore paper to the GM-X205GPS accept modules for example, introduced a data format, and the application of PIC16F874 RS232 serial port for data receiving program

这个程序是用来对nltvde进行仿真的，该思想基于多方面的考虑-This procedure is used to nltvde simulation, based on the thinking of a number of considerations

linux 环境下GPRS通信，大家可以自由修改-linux environment GPRS communications, we can freely modify