Saturated Output-Feedback Hybrid Reinforcement Learning Controller for Submersible Vehicles Guaranteeing Output Constraints
In this brief, we propose a new neuro-fuzzy reinforcement learning-based control (NFRLC) structure that allows autonomous underwater vehicles (AUVs) to follow a desired trajectory in large-scale complex environments precisely. The accurate tracking control problem is solved by a unique online NFRLC...
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oai:doaj.org-article:72c0722e5e6e4738bb62e6cd1c26e1af2021-11-13T00:00:52ZSaturated Output-Feedback Hybrid Reinforcement Learning Controller for Submersible Vehicles Guaranteeing Output Constraints2169-353610.1109/ACCESS.2021.3113080https://doaj.org/article/72c0722e5e6e4738bb62e6cd1c26e1af2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9539163/https://doaj.org/toc/2169-3536In this brief, we propose a new neuro-fuzzy reinforcement learning-based control (NFRLC) structure that allows autonomous underwater vehicles (AUVs) to follow a desired trajectory in large-scale complex environments precisely. The accurate tracking control problem is solved by a unique online NFRLC method designed based on actor-critic (AC) structure. Integrating the NFRLC framework including an adaptive multilayer neural network (MNN) and interval type-2 fuzzy neural network (IT2FNN) with a high-gain observer (HGO), a robust smart observer-based system is set up to estimate the velocities of the AUVs, unknown dynamic parameters containing unmodeled dynamics, nonlinearities, uncertainties and external disturbances. By employing a saturation function in the design procedure and transforming the input limitations into input saturation nonlinearities, the risk of the actuator saturation is effectively reduced together with nonlinear input saturation compensation by the NFRLC strategy. A predefined funnel-shaped performance function is designed to attain certain prescribed output performance. Finally, stability study reveals that the entire closed-loop system signals are semi-globally uniformly ultimately bounded (SGUUB) and can provide prescribed convergence rate for the tracking errors so that the tracking errors approach to the origin evolving inside the funnel-shaped performance bound at the prescribed time.Omid ElhakiKhoshnam ShojaeiDeclan ShanahanAllahyar MontazeriIEEEarticleSaturation functionreinforcement learningprescribed performancehigh-gain observerinterval type-2 fuzzy neural networksmultilayer neural networksElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 136580-136592 (2021) |
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Saturation function reinforcement learning prescribed performance high-gain observer interval type-2 fuzzy neural networks multilayer neural networks Electrical engineering. Electronics. Nuclear engineering TK1-9971 |
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Saturation function reinforcement learning prescribed performance high-gain observer interval type-2 fuzzy neural networks multilayer neural networks Electrical engineering. Electronics. Nuclear engineering TK1-9971 Omid Elhaki Khoshnam Shojaei Declan Shanahan Allahyar Montazeri Saturated Output-Feedback Hybrid Reinforcement Learning Controller for Submersible Vehicles Guaranteeing Output Constraints |
description |
In this brief, we propose a new neuro-fuzzy reinforcement learning-based control (NFRLC) structure that allows autonomous underwater vehicles (AUVs) to follow a desired trajectory in large-scale complex environments precisely. The accurate tracking control problem is solved by a unique online NFRLC method designed based on actor-critic (AC) structure. Integrating the NFRLC framework including an adaptive multilayer neural network (MNN) and interval type-2 fuzzy neural network (IT2FNN) with a high-gain observer (HGO), a robust smart observer-based system is set up to estimate the velocities of the AUVs, unknown dynamic parameters containing unmodeled dynamics, nonlinearities, uncertainties and external disturbances. By employing a saturation function in the design procedure and transforming the input limitations into input saturation nonlinearities, the risk of the actuator saturation is effectively reduced together with nonlinear input saturation compensation by the NFRLC strategy. A predefined funnel-shaped performance function is designed to attain certain prescribed output performance. Finally, stability study reveals that the entire closed-loop system signals are semi-globally uniformly ultimately bounded (SGUUB) and can provide prescribed convergence rate for the tracking errors so that the tracking errors approach to the origin evolving inside the funnel-shaped performance bound at the prescribed time. |
format |
article |
author |
Omid Elhaki Khoshnam Shojaei Declan Shanahan Allahyar Montazeri |
author_facet |
Omid Elhaki Khoshnam Shojaei Declan Shanahan Allahyar Montazeri |
author_sort |
Omid Elhaki |
title |
Saturated Output-Feedback Hybrid Reinforcement Learning Controller for Submersible Vehicles Guaranteeing Output Constraints |
title_short |
Saturated Output-Feedback Hybrid Reinforcement Learning Controller for Submersible Vehicles Guaranteeing Output Constraints |
title_full |
Saturated Output-Feedback Hybrid Reinforcement Learning Controller for Submersible Vehicles Guaranteeing Output Constraints |
title_fullStr |
Saturated Output-Feedback Hybrid Reinforcement Learning Controller for Submersible Vehicles Guaranteeing Output Constraints |
title_full_unstemmed |
Saturated Output-Feedback Hybrid Reinforcement Learning Controller for Submersible Vehicles Guaranteeing Output Constraints |
title_sort |
saturated output-feedback hybrid reinforcement learning controller for submersible vehicles guaranteeing output constraints |
publisher |
IEEE |
publishDate |
2021 |
url |
https://doaj.org/article/72c0722e5e6e4738bb62e6cd1c26e1af |
work_keys_str_mv |
AT omidelhaki saturatedoutputfeedbackhybridreinforcementlearningcontrollerforsubmersiblevehiclesguaranteeingoutputconstraints AT khoshnamshojaei saturatedoutputfeedbackhybridreinforcementlearningcontrollerforsubmersiblevehiclesguaranteeingoutputconstraints AT declanshanahan saturatedoutputfeedbackhybridreinforcementlearningcontrollerforsubmersiblevehiclesguaranteeingoutputconstraints AT allahyarmontazeri saturatedoutputfeedbackhybridreinforcementlearningcontrollerforsubmersiblevehiclesguaranteeingoutputconstraints |
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1718430323745751040 |