Rate-dependent hysteresis modeling and compensation for fast steering mirrors

Hao, Guanglu; Cao, Kairui; Li, Rui; Li, Zekun; Du, Hairui; Tan, Liying

doi:10.1016/j.sna.2024.115568

Sensors and Actuators A: Physical

2024

DOI: 10.1016/j.sna.2024.115568

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Rate-dependent hysteresis modeling and compensation for fast steering mirrors

Guanglu Hao,

Kairui Cao,

Rui Li

et al.

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Cited by 1 publication

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Image motion compensation control method for the dynamic scan and stare imaging system

Gao,

Su,

Pan

et al. 2024

Appl. Opt.

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The main function of the dynamic scan and stare imaging system is to quickly and continuously search a large area and perform high-resolution imaging. To eliminate image motion during the scanning process, this paper proposes an image motion compensation control method with dual-channel control. First, an improved model-assisted active disturbance rejection control is proposed, in which an auxiliary model is integrated into the algorithm to improve the control accuracy and response speed of the rotation rate of the platform. Second, a fast steering mirror (FSM) is introduced into the control system to compensate for the scanning speed and multiple disturbances. By adopting the amplitude frequency characteristics of the tracking differentiator, a parallel tracking differentiator filter is designed to suppress the interference of gyroscope noise on the FSM. When the system is disturbed by multiple frequency disturbances, the residual error of the image motion compensation is less than the spatial angular resolution of one pixel through the dual-channel stable control of the platform and the FSM. In the scan imaging experiment results, the average value of the grayscale variance function for the compensated images is close to 90% that of the static reference images.

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Image motion compensation control method for the dynamic scan and stare imaging system

Gao,

Su,

Pan

et al. 2024

Appl. Opt.

View full text Add to dashboard Cite

show abstract

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Rate-dependent hysteresis modeling and compensation for fast steering mirrors

Cited by 1 publication

References 44 publications

Image motion compensation control method for the dynamic scan and stare imaging system

Image motion compensation control method for the dynamic scan and stare imaging system

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