讲GPS导航文件读取进matlab仿真平台的一段代码，为后续的仿真工作提供仿真数据。-GPS navigation file read into the MATLAB simulation platform of a section of code, provide simulation data for the follow-up simulation work

MATLAB读取GPS的导航文件，在IGS站下载，源码可以修改增加读取的数据并导入到写字板中(MATLAB reads the navigation files of GPS, downloads at IGS station. The source code can be modified, added read data and imported into the writing board.)