In this paper, output data of GPS receiver is obtained by the host computer. VC ++ and astronomical formula is used to calculate the elevation and azimuth of the sun, and then the elevation and azimuth of the sun are stored in the SQL Sever database every time.%利用GPS接收器输出数据给上位机,通过Visual C++编程,利用天文学公式,算出太阳的高度角和方位角,然后把太阳每时刻的高度角和方位角都储存在SQL Server数据库中.
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