Task drive oriented reconfigurable satellite constellation network access decision-making method and system

Abstract

The invention relates to a task drive oriented reconfigurable satellite constellation network access decision-making method and system. The method comprises the steps of sensing and receiving a task;judging whether the task is unique or not; directly judging whether an alternative satellite satisfies a function required by the task or not if the task is unique; further judging priorities of the new task and a currently performed task if the alternative satellite satisfies the function; accessing a new network if the priority of the new task is higher, otherwise, discarding the new task; and judging the priorities of a plurality of tasks when the task is not unique, then carrying out function judgment and judging whether to access the network or not. According to the method and the system,when network access decision-making is carried out, features of the task itself, attributes of the alternative satellite itself and the attributes of an environment in which the satellite is locatedare taken into consideration, so the constellation satellite matches the task well; the networking cost is low; additional communication system modification is avoided; the universality is high; and anetworking demand of the existing satellite is also taken into consideration, so the compatibility is high.

Description

technical field [0001] The invention relates to the technical field of mobile satellite networking, in particular to a task-driven reconfigurable constellation satellite network access decision method and system. Background technique [0002] The mission-oriented satellite constellation has the characteristics of temporary formation and cancellation after completing the mission. At the same time, its adaptability and reconfigurability require that the candidate satellites have enough intelligent dynamics to determine whether they need to join the mission. By referring to the multi-attribute decision-making in decision-making theory, and fully considering the characteristics of the mission itself, the attributes of the candidate satellites themselves, and the attributes of the environment in which the satellites are located, the candidate satellites can adaptively decide whether to join the current mission, so that the constellation size and mission Requirements are matched a...

AI Technical Summary

Problems solved by technology

The system mainly considers the orbit reconstruction and system networking of the satellites to be launched and the satellites in orbit. The networking process needs to change the existing satellite constellation configuration, which is difficult to apply to fixed constellation satellites such as navigation satellite constellations. Or the network change cost of orbit change is extremely high, which is not suitable for mission-oriented satellite network

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