Satellite adaptive networking method based on multi-attribute decision

A multi-attribute decision-making and adaptive technology, applied in the field of satellite communication, can solve the problems of lack of satellite topology and time-varying network environment considerations, lack of quantitative analysis methods, lack of adaptive processing capabilities of satellite nodes, etc.

Inactive Publication Date: 2020-09-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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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 netwo

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  • Satellite adaptive networking method based on multi-attribute decision
  • Satellite adaptive networking method based on multi-attribute decision
  • Satellite adaptive networking method based on multi-attribute decision

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Embodiment Construction

[0066] The method of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0067] Such as figure 1 As shown, a satellite adaptive networking method based on multi-attribute decision-making disclosed in this embodiment, the implementation steps are as follows:

[0068] Step 1: Sort the current tasks according to the artificially set priorities. The current satellite node receives the following four tasks with the same artificially set priorities.

[0069] Task 1: When a natural disaster occurs in a certain place, it is necessary to transmit images of the disaster area in real time through the satellite network.

[0070] Task 2: When a ship is in distress in a certain sea area, the rescue ship and the command center communicate with each other through the satellite network, and at the same time, image information of the sea area in distress needs to be provided.

[0071] Task 3: A large-scale event is h...

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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...

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/18519
Inventor 纪俊维刘珩王爱华许子涵庄航周荣花樊芳芳张天
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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