Satellite adaptive networking method based on multi-attribute decision

Abstract

The invention discloses a satellite adaptive networking method based on multi-attribute decision, and belongs to the technical field of satellite communication. According to the method, task requirements are quantified on the basis of preset priority ranking, a task requirement matrix is obtained and normalized, an attribute weight sequence is obtained through calculation on the basis of a deviation maximization principle, and therefore task attributes are weighted, summed and ranked, and the optimal task is selected to be executed. In the task execution process of the satellite, when the network environment meets the condition, task switching judgment is started. Firstly, attribute quantification is performed on surrounding satellite nodes to obtain a satellite parameter matrix and a reference sequence, normalization processing is performed, a gray correlation coefficient matrix is obtained, weighted summation is performed according to satellite attribute weights required by tasks toobtain a multi-satellite comprehensive attribute sequence, and at the moment, if a better node exists, the tasks are switched to the optimal node. Through decentralized networking and self-adaptive task switching, the networking efficiency and reliability of the satellite network can be improved.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and in particular relates to a satellite multi-task self-adaptive networking method. Background technique [0002] With the maturity of satellite launch technology and the development of satellite communication technology, the number of satellites in space is increasing, and the tasks carried are becoming more and more complex. Faced with the increasing demand for data communication services, the working mode of a single satellite is becoming more and more difficult to meet the demand. The networking technology between satellites has become an important direction for the development of satellite communication. [0003] In the existing satellite networking methods, most of them are controlled by the ground center and artificially set. The satellite network is realized through the unified scheduling of the ground control center. When there is a transmission task, one or more satell...

AI Technical Summary

Problems solved by technology

Most of the existing satellite adaptive networking technologies rely on the calculation of the processing center. Satellite nodes lack adaptive processing capabilities, and most of them focus on structural process design, lacking specific quantitative analysis methods

On the other hand, in the existing related networking methods, most of them focus on the selection of satellite multi-tasks, lack of consideration of satellite topology and time-varying network environment, and how to switch tasks or certain tasks during operation after receiving tasks from satellites. How to switch satellite nodes during the execution of a task

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