中文说明：输入GPS原始观测文件和导航文件，可利用该软件进行单差或者双差观测方程的定位，包括伪距和载波相位定位，该程序也包含坐标转换，可将定位出的WGS84坐标转换成需要的坐标。
English Description：
By inputting GPS original observation file and navigation file, the software can be used for single difference or double difference observation equation positioning, including pseudo range and carrier phase positioning. The program also includes coordinate conversion, which can convert the WGS84 coordinates to the required coordinates.