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A satellite task planning simulation analysis method and system based on a key path

A critical path and mission planning technology, applied in the aerospace field, can solve problems such as weak global search capabilities and low solution efficiency, and achieve the effects of simple construction process, improved optimization efficiency, and fast speed

Pending Publication Date: 2019-06-21
SHANGHAI SATELLITE ENG INST
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  • Claims
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Problems solved by technology

[0003] Aiming at the defects of the prior art, the purpose of the present invention is to provide a method and system for satellite mission planning simulation analysis based on critical paths, so as to overcome the shortcomings of existing methods such as low solution efficiency and weak global search ability for large-scale satellite mission planning problems

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  • A satellite task planning simulation analysis method and system based on a key path
  • A satellite task planning simulation analysis method and system based on a key path
  • A satellite task planning simulation analysis method and system based on a key path

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Embodiment

[0044] In this embodiment, the critical path-based satellite task planning simulation analysis method of the present invention is introduced as follows: 1. Use the simulation software to calculate the satellite observation window and roll angle data; 2. Generate an initial task allocation plan; 3. Use the critical path method Calculate the individual fitness; 4. Determine whether the iteration is over.

[0045] The satellite task planning simulation analysis system based on the critical path of the present invention is introduced as follows: it includes three parts: an observation window calculation module, an optimization module and a result output module. Execute, that is, execute the observation window calculation module first, then execute the optimization module, and finally execute the result output module.

[0046] Next, the present invention will be described in detail.

[0047] The object of the present invention is to provide a satellite mission planning simulation ...

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Abstract

The invention relates to a satellite task planning simulation analysis method and system based on a key path, and belongs to the technical field of spaceflight. The method comprises the steps: 1, calculating satellite observation window and yaw angle data by utilizing simulation software; 2, generating an initial task allocation scheme; 3, calculating individual fitness by utilizing a key path method; And 4, judging whether iteration is finished or not. The invention further relates to a satellite task planning simulation analysis system based on the key path, the satellite task planning simulation analysis system comprises an observation window calculation module, an optimization module and a result output module, and the three modules are executed in sequence when satellite task planningsimulation is carried out. A genetic algorithm and a key path method are adopted to carry out simulation analysis on satellite task planning, rapidity is guaranteed, and meanwhile it is guaranteed that the method has good global searching capacity.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a critical path-based simulation analysis method and system for satellite mission planning. Background technique [0002] Today, satellite earth observation data play an important role in various fields such as meteorology, agriculture, surveying and mapping, and disaster prevention and mitigation. With the continuous expansion of user needs, multi-satellite networking to form a multi-satellite earth observation system will definitely become a trend in the development of space information technology. In order to give full play to the collaborative observation capability of the multi-satellite system and obtain the maximum observation benefits, it is often necessary to carry out mission planning for satellites in orbit. However, the current satellite mission planning simulation analysis methods are often inefficient in solving large-scale problems, and it is difficult to find ...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06N3/12
Inventor 毛李恒刘柔妮邓清陈晶孔祥龙赵毅
Owner SHANGHAI SATELLITE ENG INST
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