Satellite observation task planning method based on case matching

Abstract

The invention belongs to the field of satellite-to-earth observation and relates to a satellite observation task planning method based on case matching. The method comprises steps of: (S1), according to a historical task planning result, generating a case according to a case generation method and establishing a case library; (S2), computing a satellite regression period and setting a planning parameter and a comprehensive evaluated value function; (S3), reading the case library and performing similar target matching on the target set of a task set to be planned and the target set of the case set; (S4) performing case matching on the task set to be planned; (S5) performing case correction on a candidate case set; (S6), forming a case method initial group and a random method initial group according to a case method initialization strategy and a random method initialization strategy; (S7) performing first-stage evolution; (S8) combining the evolved groups into one group to be subjected to second-stage evolution to obtain a final group, and selecting an optimal solution as a final result; and (S9), matching the final result and storing the final result in the case library if the final result is not matched.

Description

technical field [0001] The invention belongs to the field of satellite earth observation, and in particular relates to a satellite observation task planning method based on case matching. Background technique [0002] Since the Soviet Union launched the first artificial earth satellite in 1957, spacecraft technology has made great progress. As one of the most important categories in the spacecraft family, earth observation satellites mainly use spaceborne sensors to monitor the earth's surface and lower atmosphere. Detecting to obtain relevant information has unique advantages such as wide coverage area, long duration, no airspace and national boundaries, and no personnel safety. At present, earth observation satellites play an irreplaceable role in many fields such as military affairs, disaster prediction and prevention, environmental protection, urban planning, agriculture, and meteorology. [0003] At present, the traditional satellite observation mission planning busine...

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Problems solved by technology

[0005] The starting point of the above methods is to establish corresponding models for practical problems, and the previous planning results are less utilized, resulting in the need to re-calculate each planning, the calculation speed has not been substantially improved, and relatively little consideration is given to user satisfaction, which hinders Opportunities for users to participate in decision-making

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