Aviation laser communication system and communication method thereof

Abstract

The invention discloses an aviation laser communication system which mainly aims to settle a problem that aviation communication is restricted by frequency spectrum and bandwidth. The aviation laser communication system comprises the components of a satellite-borne system which comprises an optical transmitter-and-receiver and an electric control cabinet; a plane-borne system which comprises an optical transmitter-and-receiver, an electric control cabinet, a bracket for mounting, and a radome which sleeves the whole plane-borne system; and a ground system which comprises an optical transmitter-and-receiver and an electric control cabinet. The plane-borne system realizes bidirectional laser communication between the plane-borne system and the ground system. The optical transmitter-and-receivers of the satellite-borne system, the plane-borne system and the ground system respectively comprise a communication transmitting module, a communication receiving module, a capturing aiming tracking module and an optical antenna. The light which is transmitted from the communication transmitting module passes through the capturing aiming tracking module and is transmitted through the optical antenna. The light which is received by the optical antenna passes through the capturing aiming tracking module, the light is received through the communication receiving module. The capturing aiming tracking module realizes establishing and keeping of a laser communication link with the corresponding optical transmitter-and-receiver.

Description

technical field [0001] The invention relates to the technical field of laser communication, in particular to an aviation laser communication system. Background technique [0002] At present, aeronautical communication is mainly realized through microwave satellites. When communicating through the microwave radio, since the radio frequency is the basis for the normal operation of the space system and the channel for information transmission, in order to prevent electromagnetic interference between satellites, it is necessary to maintain a certain interval between the communication frequencies for frequency isolation, so the use of radio spectrum will be greatly restricted. [0003] Existing aviation interconnection technologies are generally divided into three categories, namely air-to-air communication technology (Air To Ground, ATG) based on terrestrial telecommunications base stations, geostationary orbit (GEO) satellites, and low-orbit (LEO) constellations. [0004] ATG...

AI Technical Summary

Problems solved by technology

[0007] Therefore, the aeronautical communication network technology in the prior art has the problem of limited frequency spectrum and bandwidth, a

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