On disturbance rejection control for inertial stabilization of long-distance laser positioning with movable platform

This paper focuses on the disturbance rejection control problem for inertial stabilization of long-distance laser positioning with the movable platform. Due to various disturbances of the movable platform, the positioning system has significant disturbances that affect the positioning accuracy. More...

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Main Authors: Jiuqiang Deng, Wenchao Xue, Xi Zhou, Yao Mao
Format: Article
Language:English
Published: SAGE Publishing 2020-08-01
Series:Measurement + Control
Online Access:https://doi.org/10.1177/0020294020935492
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author Jiuqiang Deng
Wenchao Xue
Xi Zhou
Yao Mao
author_facet Jiuqiang Deng
Wenchao Xue
Xi Zhou
Yao Mao
author_sort Jiuqiang Deng
collection DOAJ
description This paper focuses on the disturbance rejection control problem for inertial stabilization of long-distance laser positioning with the movable platform. Due to various disturbances of the movable platform, the positioning system has significant disturbances that affect the positioning accuracy. Moreover, the nonminimum-phase property of the inertial stabilization system leads to great challenges for designing traditional disturbance-observer-based as well as rejection control methods. In this paper, a dual-compensator disturbance-observer-based control algorithm is proposed to ensure a much stronger rejection of disturbances than those of conventional methods. In particular, it is proven that the two compensators in the proposed method effectively estimate disturbances in different frequency regions. Furthermore, the analytical tuning laws for the proposed dual-compensator disturbance-observer-based control method are presented. The experimental setup including the laser positioning platform demonstrated the validity of the proposed method, which effectively rejected various disturbances.
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spelling doaj.art-3387d10667ff48ff8f3c569fa366aab52022-12-22T03:47:04ZengSAGE PublishingMeasurement + Control0020-29402020-08-015310.1177/0020294020935492On disturbance rejection control for inertial stabilization of long-distance laser positioning with movable platformJiuqiang Deng0Wenchao Xue1Xi Zhou2Yao Mao3University of Chinese Academy of Sciences, Beijing, ChinaAcademy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, ChinaInstitute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaThis paper focuses on the disturbance rejection control problem for inertial stabilization of long-distance laser positioning with the movable platform. Due to various disturbances of the movable platform, the positioning system has significant disturbances that affect the positioning accuracy. Moreover, the nonminimum-phase property of the inertial stabilization system leads to great challenges for designing traditional disturbance-observer-based as well as rejection control methods. In this paper, a dual-compensator disturbance-observer-based control algorithm is proposed to ensure a much stronger rejection of disturbances than those of conventional methods. In particular, it is proven that the two compensators in the proposed method effectively estimate disturbances in different frequency regions. Furthermore, the analytical tuning laws for the proposed dual-compensator disturbance-observer-based control method are presented. The experimental setup including the laser positioning platform demonstrated the validity of the proposed method, which effectively rejected various disturbances.https://doi.org/10.1177/0020294020935492
spellingShingle Jiuqiang Deng
Wenchao Xue
Xi Zhou
Yao Mao
On disturbance rejection control for inertial stabilization of long-distance laser positioning with movable platform
Measurement + Control
title On disturbance rejection control for inertial stabilization of long-distance laser positioning with movable platform
title_full On disturbance rejection control for inertial stabilization of long-distance laser positioning with movable platform
title_fullStr On disturbance rejection control for inertial stabilization of long-distance laser positioning with movable platform
title_full_unstemmed On disturbance rejection control for inertial stabilization of long-distance laser positioning with movable platform
title_short On disturbance rejection control for inertial stabilization of long-distance laser positioning with movable platform
title_sort on disturbance rejection control for inertial stabilization of long distance laser positioning with movable platform
url https://doi.org/10.1177/0020294020935492
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