Agile satellite target decomposition method and system based on push-scan trajectories

The invention discloses a satellite target decomposition method and system based on a push-scan trajectories. The method includes obtaining vertex-crossing side sway of a satellite when crossing each vertex of a satellite target, and calculating breadth corresponding minimum side sway of the vertex-crossing side sway as strip width; utilizing the strip width to solve two endpoints of each push-scan trajectory; calculating boundary feature points of a corresponding strip according to the two endpoints of each push-scan trajectory; utilizing the boundary feature points to extend the push-scan trajectory, thereby obtaining a push-scan trajectory vector; substituting the push-scan trajectory vector and the strip width into a strip four-vertex calculation model, thereby obtaining strip four-vertex coordinates; and the strip four-vertex calculation model is a model established by use of a method for coordinate conversion based on conjugate quaternion and is used for calculating the strip four-vertex coordinates. The method and system provided by the invention selects the width corresponding to the minimum side sway at a vertex-crossing moment of the satellite as the strip width, so that the strip can be guaranteed to be fully covered, and the utilization rate of the width of the satellite is improved.