地球自转条件下的卫星测控模型

Math Model of Satellites and Spacecraft Tracking Control with the Earth Rotation

在考虑地球自转的条件下,卫星或飞船在飞行过程中相继两圈的经度有一些差异,并且卫星或飞船的运行轨道与地球赤道平面有固定的夹角,因而卫星或飞船轨道构成一个环形区域。用圆的最大内接正方形来代替圆对环形区域进行覆盖,得到一个合理的所需测控站个数的数学模型,代入神七相关数据得到全程测控神七时所需的测控站的个数为37个。

Under the terms of considering the earth＇s spin in the paper,there are some differences in process of the satellite or longitude of two circles in flight of airship,and the orbit of the satellite or airship and level of the equator of the earth have fixed contained angles,therefore,an annular is formed by the satellite or airship.By using square round to most heavily replace round to cover the annular area get one observing,controlling and standing mathematical modelling of number.Absorbed relevant data observe and control number of Shenzhou VII,37 stations are asked in the whole observing journey.