Network link establishment method for satellite formation networking

Abstract

The invention provides a network link establishment method for satellite formation networking. The satellite formation networking comprises a first satellite and at least one second satellite. The method comprises the following steps of: detecting whether the first satellite and the at least one second satellite are in a normal running state or not; if the first satellite and the at least one second satellite are detected to be in the normal running state, establishing a satellite-ground measurement and control link with a ground measurement and control system according to a first preset condition by using the first satellite, or establishing an inter-satellite link between the at least one second satellite and the first satellite in the normal running state according to a second preset condition; and bidirectionally transmitting own corresponding measurement and control information between the at least one second satellite and the first satellite, and bidirectionally transmitting own corresponding measurement and control information between the first satellite and the ground measurement and control system. In the method, the data of each satellite in the satellite formation networking can be acquired in a single-station single-satellite measurement and control way, so that the utilization rate of measurement and control resources is increased, and the reliability of the measurement and control way is improved.

Description

technical field [0001] The invention relates to aerospace information technology, in particular to a method for establishing a network link of a satellite formation network. Background technique [0002] At present, the satellite measurement and control mainly adopts the single-station single-satellite measurement and control method. That is, when each satellite passes over the ground measurement and control station, it directly establishes a satellite-ground measurement and control link with the ground measurement and control station according to the instructions of the on-board computer. The above-mentioned single-station single-satellite measurement and control feature is that each ground measurement and control station only serves one satellite at the same time, and multiple satellites realize data transmission between multiple measurement and control stations around the world in time-sharing. [0003] With the development of satellite networks, the miniaturization of s...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional single-station single-satellite measurement and control method is not suitable for three-axis / spin-stabilized micro-nano-satellite hybrid network formation applications

Reason 1: The operation mode of multiple micro-nano-satellite formations is often used to complete the function of a large satellite, but the ground measurement and control station cannot track multiple satellites in one pass, so that the number of measurement and control times obtained by each micro-nano-satellite per circle Compared with a single large satellite, the measurement and control capability of the satellite is reduced; the second reason: due to the rotation characteristics, the quality of the measurement and control link between the spin-stabilized micro-nano satellite and the ground measurement and control station is reduced, and the visible time window when the satellite transits decrease, resulting in a decline in the measurement and control capability of spin-stabilized satellites; reason three: due to the power limitation of spin-stabilized micro-nano satellites, the rate of measurement and control links is low; reason four: multiple micro-nano-satellites operate in formation, making the measurement and control data The amount is large; Reason five: Insufficient flexibility of single-satellite single-station measurement and control scheduling, etc.

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