Ground remote sensing satellite scanning attitude control method and system

The invention provides a ground remote sensing satellite scanning attitude control method and system. The ground remote sensing satellite scanning attitude control method comprises the following steps: calculating an overhead moment of a ground remote sensing satellite relative to a ground observation target point; calculating a ground track angle observed through condensation scanning according to the overhead moment; calculating a ground track tracking point based on the time sequence and the ground track angle; calculating the load optical axis direction of the earth remote sensing satellite at a specific moment according to the ground track tracking point; and according to the optical axis direction of the load of the earth remote sensing satellite, determining a condensed scanning attitude of the earth remote sensing satellite at the current control point. 本发明提供了一种对地遥感卫星凝扫姿态控制方法及系统，所述对地遥感卫星凝扫姿态控制方法包括：计算对地遥感卫星相对于地面观测目标点的过顶时刻；根据所述过顶时刻计算凝扫观测的地面航迹角；基于时间序列及所述地面航迹角计算地面航迹跟踪点；根据所述地面航迹跟踪点计算特定时刻的对地遥感卫星载荷光轴指向；根据所述对