绘制卫星星下点轨迹，有示例数据，方便学习卫星轨道基础
Drawing satellite star trajectory, there are examples of data, easy to learn the basis of satellite orbit (2021-04-22, C#, 73KB, 下载1次)
实现了单点定位的基本功能。还有误差分析。
The basic function of single point positioning is realized. Error analysis. (2019-05-25, C#, 33409KB, 下载6次)
单点定位，ppp处理，采用伪距和载波多项进行编程定位处理
Single point positioning, PPP processing (2018-08-07, C#, 37350KB, 下载7次)
基于c#多线程串口编程，解析GPS输出NMEA0183协议解析器框架。编程环境VS2012
c# source code for the NMEA0183 of gps. BASE OF Mutithread of serial port. (2015-10-09, C#, 95KB, 下载100次)
C# GPS中精密星历文件的读取，编程引用很方便，节约时间
C# GPS in precise ephemeris file read, programming references is very convenient, saving time (2013-06-13, C#, 5KB, 下载17次)
C#GPS编程中设计的各类常量定义，学习使用
C# GPS programming designed various constant definitions, learning to use (2013-06-13, C#, 6KB, 下载6次)
GPS单点定位程序，采用C#编程，导入星历文件，可实现GPS单点定位计算
GPS single point positioning procedures, using C# programming, import ephemeris file, GPS single point positioning calculation (2013-05-20, C#, 449KB, 下载42次)
GeoPAD SDK
C# vb.net Mobile phone地图编程控件
可开发poket pc及smart phone 上的地图应用程序！
GeoPAD SDK C# vb.net Mobile phone maps can be opened Control Programming poket pc and the smart phone on the map application! (2006-09-19, C#, 546KB, 下载114次)