获取经纬度

全面介绍MAPX开发的有关内容，VC下鹰眼图的实现VC下鹰眼图实现的 思路与VB是一样的，只不过VC的可视化程序没有VB高，VC更多的是利用代码来实现一定的功能。 -comprehensive presentation Connection development of the content, VC Hawkeye map to achieve VC Hawkeye map and the idea is the same as VB, VC only visualization process is not high VB, VC is using more code to achieve certain functions.

使用C#开发的 GPS车辆定位系统，实现B/s GPS定位,给有需要的朋友参考学习了

GPRS部分源代码，一部分常用AT命令的代码实现，比如，打电话，发短信等-GPRS part of the source code, part of the AT command used a code, for example, make phone calls and send text messages, etc.

The idea behind differential GPS is to remove as much errors as possible from the range measurements by establishing these errors at a reference site. In its most simple setup, a GPS receiver is located at a well surveyed position and its (pseudo) range measurements are compared with the actual calculated range from this receiver to the SV s. The differences between measured ranges and calculated ranges at the reference receiver are applied as corrections to the ranges measured by other receiver(s) close by.

三星GPS模块资料,13MMX16MMX2.5MM,-Samsung GPS Module Data，13MMX16MMX2.5MM.

这是GPS接收机仿真的程序， GPS数据由给定文件来模拟，对于GPS爱好者很实用。-This is the GPS receiver simulation procedures, GPS data given by the paper to simulate, for GPS enthusiasts practical.

gprs通信对数据进行校验,本程序能够精确校验GPRS数据-gprs data communications check, the program can accurately check GPRS data

the example file that can decode the NMEA protocol

该程序主要描述的是在进行GPS数据处理过程中有关GPS坐标及高程的中误差计算，能够根据已有数据快速计算X，Y，h的中误差，方便快捷。

Visual C++ source code for adding GPS units to PC desktop and Notebook exchange data from Serial port to GPS devices support for NMEA-0183 GPS Standard.