Research on line-of-sight stabilization control technology under moving platform

Yang Liu; Zhe An

doi:10.1117/12.2647469

23 January 2023 Research on line-of-sight stabilization control technology under moving platform

Yang Liu, Zhe An

Proceedings Volume 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology; 125570K (2023) https://doi.org/10.1117/12.2647469
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

When the position and attitude of the moving platform change, the Los stability control technology can isolate the vibration of the moving platform, compensate the attitude change of the moving platform, ensure the stability of the front LOS, and realize the stable pointing in a specific direction and the scanning of the stable area in a specific direction. In the conventional system, the inertial navigation feedback loop is used to realize the self closing loop to suppress the carrier disturbance, but its disadvantage is that the application scenario is limited. We introduce inertial navigation into the control system for feedforward use, which requires bandwidth matching in the control method and stable loop in the control strategy. Aiming at this technical difficulty, this paper studies the Los stability control technology under the moving platform. Firstly, the working principle of LOS stabilization system is analyzed, then the control algorithm is modeled, and the position loop, velocity loop and acceleration loop are designed respectively. Then the LOS stabilization coordinate conversion model is established, and the conversion relationship from spatial coordinate system to moving platform coordinate system is obtained. On the basis of moving platform stability correction, encoder and inertial navigation are used to form a double closed loop to improve the control effect of LOS stabilization and to achieve the purpose of suppressing visual

Citation Download Citation

Yang Liu and Zhe An "Research on line-of-sight stabilization control technology under moving platform", Proc. SPIE 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology, 125570K (23 January 2023); https://doi.org/10.1117/12.2647469

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KEYWORDS

Control systems

Imaging systems

Servomechanisms

Visualization

Navigation systems

Line of sight stabilization

Optical scanning systems

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