NEMA协议校验值的计算

NMEA parser sorce codes for MFC

该程序是mobile５.0　ppc２００３系统下的，走http协议，通过无线网络的客户端升级程序．需要做在客户端升级的同仁们，可以参考一下．-The program is mobile5.0 ppc2003 systems and take the http protocol, through a wireless network client upgrade process. Does the client need to upgrade their Tongren, you can reference.

该程序为GPS数据采集程序，AppWizard has created this GPS application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that make up your GPS application.-The program for GPS data collection procedures, AppWizard has created this GPS application for you. This applicationnot only demonstrates the basics of using the Microsoft Foundation classesbut is also a starting point for writing your application.This file contains a summary of what you will find in each of the files thatmake up your GPS application.

GPRS蓝斯DTU数据中心VB源代码，用于服务器-GPRS Lance DTU Data Center VB source code for the server

使用串口连接GPS模块，定位信息显示在QT设计的软件上

提出了利用精密单点定位(precise point positioning,PPP)技术进行海啸预警的方法,并利用TriP软件对实测浮标数据进行了处理,将得出的海面高数据和海啸波模型叠加进行了模拟分析。仿真结果表明,利用精密单点定位技术进行海啸预警,能够监测判断海啸的发生,并获得海啸波到达海岸的波高和时间,提供一定的预警信息。 -Made use of Precise Point Positioning (precise point positioning, PPP) technology for tsunami early warning methods and the use of Trip software buoy measured data were processed, will come to the surface of high tsunami wave model data and conducted a simulation analysis of superposition. The simulation results show that the use of Precise Point Positioning for the tsunami early warning, to monitor to determine the occurrence of the tsunami, and tsunami wave reached the coast, wave height and time, provide some early warning information.

本程序采用C++联合OPENGL编程实现了对太空中高速运行GPS卫星的星座进行显示，可以看到天空中24颗卫星的实际运行三维图

WGS84BJ54两种空间直角坐标系的转换,由空间直角坐标到大地坐标的转换.-WGS84BJ54 two space rectangular coordinate system conversion, from the Cartesian coordinates of the space geodetic coordinates of the conversion.

GPS单点定位程序，可实现卫星坐标计算，地面点坐标计算，精度指标计算和输出到Excel。

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