Anti-Disturbance Neural-Sliding Mode Control for Inertially Stabilized Platform With Actuator Saturation

To consider the environment during ground vehicle driving, the inertially stabilized platform (ISP) can be used for electro-optical tracking instruments to isolate the senor's line of sight (LOS) from the carrier's vibrations with high precision and stability. This paper proposes the combi...

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Main Authors: Zhushun Ding, Feng Zhao, Yuedong Lang, Zhe Jiang, Jiajing Zhu
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8756266/
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author Zhushun Ding
Feng Zhao
Yuedong Lang
Zhe Jiang
Jiajing Zhu
author_facet Zhushun Ding
Feng Zhao
Yuedong Lang
Zhe Jiang
Jiajing Zhu
author_sort Zhushun Ding
collection DOAJ
description To consider the environment during ground vehicle driving, the inertially stabilized platform (ISP) can be used for electro-optical tracking instruments to isolate the senor's line of sight (LOS) from the carrier's vibrations with high precision and stability. This paper proposes the combination of a backstepping sliding mode controller with the adaptive neural networks approach (BSMC-NN) for ISP that achieves output torque saturation and considers parametric uncertainties, friction, and gimbal mass imbalance. An adaptive radial basis function neural network is adopted to approximate uncertain disturbances in this dynamic system. In contrast to the existing saturated control structures, an auxiliary function is designed to compensate for any error between the designed and the actual control torque. The closed-loop stability and asymptotic convergence performance are guaranteed based on the Lyapunov stability theory. Finally, the simulation and experimental results demonstrate that this proposed controller can effectively regulate the gimbal rotation angle under different external disturbances. This offers superior control performance despite the existence of the nonlinear dynamics and control input constraints.
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spelling doaj.art-3ed147c01a104a088f879939bff29b372022-12-21T21:26:44ZengIEEEIEEE Access2169-35362019-01-017922209223110.1109/ACCESS.2019.29274278756266Anti-Disturbance Neural-Sliding Mode Control for Inertially Stabilized Platform With Actuator SaturationZhushun Ding0Feng Zhao1https://orcid.org/0000-0003-0311-5076Yuedong Lang2Zhe Jiang3Jiajing Zhu4Department of Aerospace and Engineering, National University of Defense Technology, Changsha, ChinaBeijing Institute of Aerospace Control Devices, Beijing, ChinaBeijing Institute of Aerospace Control Devices, Beijing, ChinaBeijing Institute of Aerospace Control Devices, Beijing, ChinaBeijing Institute of Aerospace Control Devices, Beijing, ChinaTo consider the environment during ground vehicle driving, the inertially stabilized platform (ISP) can be used for electro-optical tracking instruments to isolate the senor's line of sight (LOS) from the carrier's vibrations with high precision and stability. This paper proposes the combination of a backstepping sliding mode controller with the adaptive neural networks approach (BSMC-NN) for ISP that achieves output torque saturation and considers parametric uncertainties, friction, and gimbal mass imbalance. An adaptive radial basis function neural network is adopted to approximate uncertain disturbances in this dynamic system. In contrast to the existing saturated control structures, an auxiliary function is designed to compensate for any error between the designed and the actual control torque. The closed-loop stability and asymptotic convergence performance are guaranteed based on the Lyapunov stability theory. Finally, the simulation and experimental results demonstrate that this proposed controller can effectively regulate the gimbal rotation angle under different external disturbances. This offers superior control performance despite the existence of the nonlinear dynamics and control input constraints.https://ieeexplore.ieee.org/document/8756266/Backsteppingadaptive RBFNNmass imbalanceactuator saturation
spellingShingle Zhushun Ding
Feng Zhao
Yuedong Lang
Zhe Jiang
Jiajing Zhu
Anti-Disturbance Neural-Sliding Mode Control for Inertially Stabilized Platform With Actuator Saturation
IEEE Access
Backstepping
adaptive RBFNN
mass imbalance
actuator saturation
title Anti-Disturbance Neural-Sliding Mode Control for Inertially Stabilized Platform With Actuator Saturation
title_full Anti-Disturbance Neural-Sliding Mode Control for Inertially Stabilized Platform With Actuator Saturation
title_fullStr Anti-Disturbance Neural-Sliding Mode Control for Inertially Stabilized Platform With Actuator Saturation
title_full_unstemmed Anti-Disturbance Neural-Sliding Mode Control for Inertially Stabilized Platform With Actuator Saturation
title_short Anti-Disturbance Neural-Sliding Mode Control for Inertially Stabilized Platform With Actuator Saturation
title_sort anti disturbance neural sliding mode control for inertially stabilized platform with actuator saturation
topic Backstepping
adaptive RBFNN
mass imbalance
actuator saturation
url https://ieeexplore.ieee.org/document/8756266/
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AT fengzhao antidisturbanceneuralslidingmodecontrolforinertiallystabilizedplatformwithactuatorsaturation
AT yuedonglang antidisturbanceneuralslidingmodecontrolforinertiallystabilizedplatformwithactuatorsaturation
AT zhejiang antidisturbanceneuralslidingmodecontrolforinertiallystabilizedplatformwithactuatorsaturation
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