A Space-Based Information Relay Transmission Method for Satellite Internet

Abstract

The invention discloses a space-based information relay transmission method oriented to a satellite internet network. The method includes the following steps: when it is determined that a user satellite cannot perform a task request, according to the idle resource status of the relay satellites published by the satellite internet network operation and maintenance management and control center. , submit a relay link application to the satellite Internet network operation and maintenance management and control center to determine the available relay transmission links; the user satellite management and control center will connect the user satellites that need to perform relay transmission tasks to the relay transmission link through control instructions. After the high-orbit satellite receives the remote sensing data sent by the user satellite, the high-orbit satellite sends the remote sensing data to the ground station to complete the data landing of the user satellite. The method of the invention can realize space-based information relay, so as to optimize the transmission structure, increase the number of user services, and improve the timeliness of space-based information transmission and the use efficiency of satellites.

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 internet network. Background technique [0002] With the rapid development of my country's national economy and the rapid improvement of social comprehensive management capabilities, the demand for earth observation data continues to grow, and the application requirements of various user satellites such as ocean, meteorology, and land are also increasing. [0003] However, due to the influence of the curvature of the earth and the straight-line propagation of electromagnetic waves, the coverage of the use of ground stations to control low- and medium-orbit spacecraft is very small, and the control mode has obvious defects. Hundreds of sites are evenly distributed on the global surface, which is unfeasible in terms of geopolitics and cost budgets. The existing high-orbit relay inter-satel...

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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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