Area target coverage method for imaging satellite based on primary coverage band maximization

Abstract

An area target coverage method for an imaging satellite based on primary coverage band maximization is provided. A satellite changes a side view angle with a preset angle as a step length every time,meshes of a primary coverage area are scanned and covered by an instantaneous field angle, and attributes of mesh points covered by push-sweep every time are adjusted. After the side view angle and cover area of push-sweep every time are recorded, the attribute value of the mesh of the coverage area is reset. Finally, a push-sweep angle covering the maximum mesh area is selected to add into a sideview scheme. If a plurality of primary coverage areas exist and the maximum push-sweep area after instantaneous coverage is the same, the side view coverage band with the largest actual coverage areais selected in the target area to determine the side view angle, otherwise the instantaneous coverage with the maximum push-sweep area is selected to determine the side view angle. The Area target coverage method for imaging satellite provided by the invention can effectively deal with large-scale situations, and greatly improves performance evaluation of time effectiveness, coverage rate, resolution and the like of area coverage of multiple kinds of imaging satellites under complex constraint conditions.

Description

technical field [0001] The invention relates to the field of satellite target coverage, studies the problem of complete coverage of multi-satellite multi-constrained area targets, and provides an imaging satellite area target coverage method based on the maximization of primary coverage strips. Background technique [0002] Imaging satellites are widely used in military reconnaissance, environmental monitoring and other fields. Compared with a single imaging satellite, the multi-satellite constellation has the advantages of large coverage, short revisit time, low time resolution and low investment risk. Target coverage is one of the important performances of imaging satellites. The accuracy of target coverage area seriously affects the performance of imaging satellites and the accuracy of data calculation, especially in the case of multiple satellites and constraints. The accuracy of target coverage is more important. [0003] The main function of multi-satellite planning a...

AI Technical Summary

Problems solved by technology

The essence of area coverage is to fill the area of ​​the grid points. However, this method cannot judge whether the boundary grid strictly falls into the coverage filling area, resulting in boundary errors

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