The invention provides a method for calculating a satellite side-sway angle, which comprises the following steps of: firstly, calculating a moment te corresponding to the maximum value of a satellite elevation angle, calculating a moment ts corresponding to the minimum value of the distance from a ground target point to a satellite, then judging whether the values of te and ts are equal or not, if so, calculating the side-sway angle, and if not, calculating the side-sway angle. Wherein the side-sway angle is equal to the included angle between the position vector of the satellite at the te moment and the position vector of the ground target point, and if not, recalculating the numerical values of te and ts. The satellite top crossing moment of the ground target point is calculated, and the satellite deflection angle at the moment is solved, so that the remote sensing satellite earth observation task planning is realized, and the flexibility of the observation target point can be improved by adjusting the side swing angle.
本发明提供一种卫星侧摆角的计算方法,其首先计算卫星高度角的最大值所对应的时刻te,并计算地面目标点至卫星的距离的最小值对应的时刻ts,然后判断te与ts的数值是否相等,若相等,则计算侧摆角,其中侧摆角等于te时刻卫星的位置向量与地面目标点的位置向量之间的夹角,以及若不相等,则重新计算te与ts的数值。计算出地面目标点的卫星过顶时刻,并求出此刻的卫星偏转角,以实现遥感卫星对地观测任务规划,可通过调整侧摆角,提升观测目标点的灵活性。
Satellite roll angle calculation method and on-orbit task planning method
一种卫星侧摆角的计算方法及在轨任务规划方法
2024-10-22
Patent
Electronic Resource
Chinese
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