一种卫星天线“指北”方法的设计与分析

为保证卫星资料正常接收，需要对卫星天线所在位置进行标定，给出正北方位，即准确“指北”。在分析了几种已有“指北”方法优缺点的基础上，提出了利用天文方法来实现卫星天线的“指北”，即以太阳为基本空间位置参考点的卫星天线“指北”方法。并与原有“指北”方法进行了比较，表明该“指北”方法的标定精度高，得到了较好的对比结果。这种卫星天线位置标定方法方便、实用，可投入业务应用。

North-pointing method for satellite antenna

To ensure the receiving quality of the satellite data, the position of the satellite antenna should be exactly determined. Therefore, the determination of the north which means north-pointlng is necessary while receiving data. After the analysis of the existing methods, a north-pointlng method based on astronomy was presented. The sun was used as special reference point by the method. Compared with the other ones, the experimental result shows the new method has a better demarcate precision and can be widely used because it is more convenient and practical.