A large ellipse freezing orbit satellite illumination condition and sailboard shielding combined analysis method

The invention provides a combined analysis method for illumination conditions and satellite sailboard shielding of a large-ellipse frozen orbit satellite. The combined analysis method specifically comprises the following steps: step 1, performing enveloping abstraction processing on a satellite with a complex appearance according to the illumination conditions; 2, grid processing modeling is conducted on the sailboards, the relation between grid points of the sailboards and shadows formed by star shielding is judged, and a set of shielded points of the sailboards is obtained. According to themethod, the calculation result that the satellite sailboards are sheltered is obtained through combined analysis of the illumination condition and sheltering, a basis is provided for determining the area of the sailboards and calculating energy balance of the satellite, and batched calculation of satellite sailboard sheltering under the complex illumination condition can be achieved. 本发明提供了一种大椭圆冻结轨道卫星光照条件和卫星帆板遮挡联合分析方法，具体包