A wavefront control method based on active disturbance rejection control technology

Lingxi Kong; Tao Cheng; Ping Yang; Shuai Wang

doi:10.1117/12.2565365

17 April 2020 A wavefront control method based on active disturbance rejection control technology

Lingxi Kong, Tao Cheng, Ping Yang, Shuai Wang

Proceedings Volume 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications; 114557T (2020) https://doi.org/10.1117/12.2565365
Event: Sixth Symposium on Novel Photoelectronic Detection Technology and Application, 2019, Beijing, China

Abstract

The Time-delay(TD) is a crucial component to affect the controlling bandwidth of adaptive optics system. For the purpose of improving the system bandwidth, the traditional processing methodology is exploiting the Smith predictor to compensate the time-delay in adaptive optics system. However, the compensation performance of Smith predictor depends on the accuracy of system model. When the parameter of time-delay mutated, the stability of system cannot be guaranteed. In order to implement the time-delay compensation and stability of controlling system in mutating condition, this paper propose a ADRC-Smith controller, which combined Smith predictor with active disturbance rejection control(ADRC) technology. Compared with the PI-Smith algorithm, the simulation results present that the ADRC-Smith Algorithm expand the fluctuation boundary of time-delay by 5 times, and still ensure the stability of system.

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Lingxi Kong, Tao Cheng, Ping Yang, and Shuai Wang "A wavefront control method based on active disturbance rejection control technology", Proc. SPIE 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications, 114557T (17 April 2020); https://doi.org/10.1117/12.2565365

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KEYWORDS

Adaptive optics

Control systems

Wavefronts

Active optics

Atmospheric turbulence

Computer simulations

Adaptive control

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