Regional division method for satellite observation

Abstract

The invention provides a regional division method for satellite observation. The method comprises the follow steps of: step 1, determining the effective region of a target region; step 2, determining a maximum observation lateral swinging angle and a minimum observation lateral swinging angle corresponding to the effective region; step 3, making a current lateral swinging angle equal to the minimum observation lateral swinging angle, and emptying a result sub region set; step 4, adding the current lateral swinging angle into the result sub region set; step 5, adding a set granularity angle to the current lateral swinging angle; step 6, turning to step 4 if the sum of the current lateral swinging angle and the granularity angle is smaller than the maximum observation lateral swinging angle, and otherwise, turning to step 7; and step 7, adding the current lateral swinging angle into the result sub region set so that the effective region is divided into observation strip belts corresponding to each lateral swinging angle in the result sub region set. The regional division method overcomes the limitation of the Gaussian projection on task longitude differences, the accuracy is higher, and in addition, the regional division method is suitable for the target region observation by a plurality of satellites.

Description

technical field [0001] The invention relates to the technical field of satellite observation, in particular to an area division method for satellite observation (such as earth observation). Background technique [0002] According to the different types of ground targets, the research on imaging satellite scheduling problems can be divided into point target-oriented satellite scheduling problems (all observation targets are point targets) and target area-oriented satellite scheduling problems (observation targets are all target areas). kind. For the target area, the satellite usually cannot complete the observation in a single time, and it must be reasonably divided before the efficient observation can be carried out. [0003] The purpose of regional division is to divide a large area into multiple subtasks that can be completed by a single satellite at one time. At present, there are mainly the following four decomposition methods for the target area: ① transform the area ...

AI Technical Summary

Problems solved by technology

When multiple satellites are used to observe the target area, since different satellites have differences in parameters such as orbital inclination and spaceborne remote sensor width, if these decomposition methods are used, the performance differences of different satellites will not be reflected, and the satellites’ performance will not be fully utilized. Observation capability, which will reduce the observation efficiency of the target area

Therefore, it is only applicable to the case where a single satellite observes the target area

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