Space optical communication channel self-stabilizing device and method

Abstract

The invention discloses a space optical communication channel self-stabilizing device based on an aperture, which comprises a fixed base and a rotating shaft arranged at a central opening of the base, an aperture wheel disc is mounted on the rotating shaft, a plurality of attenuation piece mounting holes are uniformly formed in the aperture wheel disc, attenuation pieces with different attenuation capabilities are mounted in the attenuation piece mounting holes, and the aperture wheel disc is mounted on the rotating shaft. The attenuation slices are distributed on a circumference concentric with the rotating shaft, a channel hole directly facing one attenuation slice mounting hole is formed in the machine base, a detector is arranged behind the channel hole, a motor is arranged behind the machine base, the motor is connected with the rotating shaft through a reduction gear box, and a motor controller is arranged on the motor; the invention also discloses a self-stabilizing method. According to the invention, a multi-gear type information source aperture wheel disc is adopted, a dynamic range with large received energy is realized, a closed-loop control algorithm is utilized, an aperture is adjusted in real time to achieve a channel self-stabilization effect, the intelligent degree of channel management in laser communication is effectively improved, human intervention is reduced, the communication quality is improved, and the use value is very good.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and in particular relates to a space optical communication channel self-stabilizing device and a self-stabilizing method thereof, which are suitable for space optical communication terminals. Background technique [0002] In existing space optical communication systems, especially for laser communication terminals used on high-speed mobile platforms, due to the continuous change of communication distance and the influence of turbulence, the signal energy received by the terminal will change constantly, making the received energy insufficient or Saturation, resulting in unstable or interrupted communication. [0003] How to improve the dynamic range of energy at the receiving end and improve the stability of space optical communication in "communication in motion" is a technical difficulty in space optical communication at present. Contents of the invention [0004] In order to so...

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Problems solved by technology

[0002] In existing space optical communication systems, especially for laser communication terminals used on high-speed mobile platforms, due to the continuous change of communication distance and the influence of turbulence, the signal energy received by the terminal will change constantly, making the received energy insufficient or Saturation, leading to instability or interruption of communication

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