Satellite internet-oriented space-based information relay transmission method

Abstract

The invention discloses a satellite internet-oriented space-based information relay transmission method, which comprises the following steps of: when determining that a user satellite cannot execute a task request, proposing a relay link application to a satellite internet operation and maintenance management and control center according to a relay satellite idle resource condition published by the satellite internet operation and maintenance management and control center to the outside, thus to determine an available relay transmission link; tracking the user satellites needing relay transmission tasks and the high-orbit satellites in the relay transmission link by the user satellite management and control center through the control instruction, and executing the relay transmission tasks after tracking is completed; and after the high-orbit satellite receives the remote sensing data sent by the user satellite, sending the remote sensing data to the ground station so as to complete data landing of the user satellite. According to the method, space-based information relay can be realized, so that the transmission architecture is optimized, the number of user services is increased, and the timeliness of space-based information transmission and the use efficiency of satellites are improved.

Description

technical field [0001] The invention relates to the technical field of satellite remote sensing, in particular to a space-based information relay transmission method oriented to a satellite interconnection network. Background technique [0002] With the rapid development of my country's national economy and the rapid improvement of comprehensive social management capabilities, the demand for earth observation data continues to grow, and the application requirements for various user satellites such as ocean, meteorology, and land are also continuously increasing. [0003] However, due to the influence of the curvature of the earth and the linear propagation of electromagnetic waves, the coverage of using ground stations to control low- and medium-orbit spacecraft is very small, and the control mode has obvious defects. If it is solved by adding measurement and control stations on the surface, theoretically it needs to be Evenly distributing hundreds of stations on the surface...

AI Technical Summary

Problems solved by technology

[0003] However, due to the influence of the curvature of the earth and the linear propagation of electromagnetic waves, the coverage of using ground stations to control low- and medium-orbit spacecraft is very small, and the control mode has obvious defects. If it is solved by adding measurement and control stations on the surface, theoretically it needs to be Evenly deploy hundreds of stations on the global surface, which is not feasible in terms of geopolitics and cost budget

The existing high-orbit relay satellites cannot establish links and land through Ka-band microwaves, which cannot meet the access needs of massive user satellites and data. Therefore, there is an urgent need for space-based information relay systems to build a network through high-orbit inter-satellite links

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