Microwave-assisted spatial information network backbone networking transmission method

Abstract

The invention relates to backbone network networking transmission technology in the spatial communication field, and discloses a microwave-assisted spatial information network backbone networking transmission method. The method comprises steps: (1) spatial information network backbone nodes comprise a large-capacity communication satellite located in a synchronous orbit and a high-altitude communication platform in the stratosphere, and each backbone node has microwave and laser transmission means; (2) a backbone node accessed to the network newly uses the microwave means to send an access network application in a public control channel, access network approval is completed by an operational control central station, and node routing information is updated in a special control channel; and (3) a user initiates an access application, a backbone node in charge of access judges service requirements, transmission of low-speed service is completed in the microwave means, and as for high-speed service, the microwave means first assists to build a laser link, and signal transmission is then completed in the laser link. The broadcasting ability of the microwave and the high-speed ability of the laser are combined, and a flexible and high-speed transmission ability is provided for the satellite backbone network.

Description

technical field [0001] The invention relates to the technical field of satellite communication systems, in particular to a high-speed service transmission method based on a space information network. Background technique [0002] The space information network is a network system that acquires, transmits and processes space information in real time using space movement platforms (including satellites, airships and aircraft) as carriers. The space information network with satellite communication as the main means has the characteristics of wide coverage, high transmission rate, stable transmission channel, and little influence by terrain. Compared with other communication systems such as short wave and ultrashort wave, it has significant advantages. As a public basic information transmission platform, the space information network can support multiple high-data rate remote sensing services and low data rate voice services at the same time, requiring the space information netwo...

AI Technical Summary

Problems solved by technology

However, due to the frequent relative motion between satellites and the high risk of new technologies, it is currently difficult for spaceborne optical multi-beam technology to be popularized on satellites.

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