Composite feedback control vibration compensating system based on CCD

Abstract

This invention relates to a compound feed back control vibration compensation system based on CCD, in which, the beacon light emitted by a target terminal passes through an optical antenna, a light splitting plate, a filter and an imaging lens set to be imaged on a CCD detector, the signal light output by a signal light generator passes through a total reflection mirror and a light splitting plate to be expanded by the optical antenna and emitted to a target terminal, a precise aiming mirror controller utilizes the CCD detector to get the information of an angle of declination to control the deflection of the total reflection mirror to let signal lights emit to the target terminal along the initial path of the beacon light accurately. The compensation system can detect the vibration of a satellite platform timely.

Description

technical field

[0001] The invention relates to the technical field of satellite optical communication. Background technique

[0002] The satellite optical communication terminal is carried by the satellite platform, and the vibration of the satellite platform will cause the terminal antenna to deviate, causing the signal light sent by the terminal to deviate from the target optical communication terminal (the ground terminal or the on-board terminal with which the link is established). This situation will attenuate the signal optical power that can be received by the target terminal, and in severe cases, it will cause the interruption of the satellite laser communication link. Therefore, it is one of the key problems in the research of satellite optical communication technology to propose an effective compensation method for satellite platform vibration. At present, my country's satellite optical communication system is in the development stage, and an effective satellite ...

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