卫星跟踪测站点分析

Analysis on Satellite Tracking and Control Centers

从卫星或飞船的运行轨道出发,在不考虑地球的自转情况下,建立了理想化的模型(将其运行轨迹视为标准圆),计算出卫星或飞船在高度为300到500公里范围内运行时在全球最少测控站点为10个。进一步考虑地球自转时该卫星或飞船在运行过程中的经度差异问题,根据实际情况,采用最小覆盖原理对模型进行优化设计,通过利用Matlab软件进行各种情况的搜索求解,得出最少的测控站点应为29个。

Starting from the orbit of a satellite or spacecraft,one ideal model has been established（without considering the rotation of the earth and supposing the running track is a standard circle）and further calculation shows that a satellite or spacecraft needs at least 10 tracking and control centers when running at the height of 300 to 500kilometers.Considering the longitude differences of a running satellite or spacecraft at the earth＇s rotation and some actual situations,the model has been optimized by using minimum cover principle.Finally,by using the MATLAB to calculate all kinds of cases,it is concluded that minimum tracking and control centers are 29.