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    This study introduces a fuzzy control method for wavefront correction in laser communication. The technique effectively corrects wavefront distortion and enhances system response speed.

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    Area of Science:

    • Optics and Photonics
    • Control Systems Engineering
    • Laser Technology

    Background:

    • Wavefront distortion significantly impacts laser communication performance.
    • Traditional wavefront correction methods can be complex and difficult to tune.

    Purpose of the Study:

    • To develop an efficient and self-tuning wavefront correction method for laser communication.
    • To improve the system response speed and reduce parameter adjustment complexity.

    Main Methods:

    • Utilized the direct wavefront gradient algorithm to compute deflection mirror control voltage.
    • Implemented a dual fuzzy control strategy with a fuzzy rule base for proportional-integral-derivative (PID) controller parameter tuning.
    • Incorporated a weight factor and threshold judgment for adaptive control voltage correction and parameter self-tuning.

    Main Results:

    • The proposed method effectively corrects wavefront distortion signals.
    • Demonstrated significant improvement in system response speed through simulations and experiments.
    • Successfully reduced the difficulty of parameter adjustment for the wavefront correction system.

    Conclusions:

    • The fuzzy control approach offers an effective solution for wavefront correction in laser communication.
    • The self-tuning capability enhances adaptability and simplifies system operation.
    • The method meets the stringent requirements of laser communication systems for precise wavefront control.