Neural Network-Based Lower Limb Prostheses Control Using Super Twisting Sliding Mode Control

This paper presents a method for controlling the prosthetic leg using surface Electromyography (sEMG) signals, Artificial Neural Network (ANN), and Super Twisting Sliding Mode Control (ST-SMC). The triggering signal is extracted from the user’s muscles and intense signal preprocessing tha...

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Main Authors: Adisu Tadese Demora, Chala Merga Abdissa
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10870247/
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author Adisu Tadese Demora
Chala Merga Abdissa
author_facet Adisu Tadese Demora
Chala Merga Abdissa
author_sort Adisu Tadese Demora
collection DOAJ
description This paper presents a method for controlling the prosthetic leg using surface Electromyography (sEMG) signals, Artificial Neural Network (ANN), and Super Twisting Sliding Mode Control (ST-SMC). The triggering signal is extracted from the user’s muscles and intense signal preprocessing that includes filtering, rectification, linearization, and Mean Average Value (MAV) feature extraction. The ANN predicts joint angles for walking, upstairs, and downstairs using the processed sEMG signals of the muscles and measured and filtered target joint angles. The neural network structure is built using Feed-forward Neural Network (FFNN) architecture and Levenberg-Marquardt (LM) back-propagation training algorithm for accuracy, fast convergence, and reliable optimization of nonlinear relationships. The ST-SMC controller regulates the motion of the prosthetic joints according to specified reference trajectories. MATLAB signal analyzers, neural network fitting packages, and Simulink are used to preprocess signals, train the FFNN for dynamic modeling of the system, and design controllers. The proposed ST-SMC is compared with conventional SMC. Simulation results show that training the neural network with processed data increases regression value and decreases trajectory tracking mean squared error (MSE). The controller’s robustness against internal parameter change and external environmental changes is demonstrated through parameter variation and disturbance analysis.
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issn 2169-3536
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publishDate 2025-01-01
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spelling doaj-art-8b513236fc9745fca99b6d3b520b85092025-02-12T00:01:41ZengIEEEIEEE Access2169-35362025-01-0113249292495310.1109/ACCESS.2025.353868910870247Neural Network-Based Lower Limb Prostheses Control Using Super Twisting Sliding Mode ControlAdisu Tadese Demora0https://orcid.org/0009-0000-1416-7651Chala Merga Abdissa1https://orcid.org/0000-0003-3685-4887School of Electrical and Computer Engineering, Addis Ababa University, Addis Ababa, EthiopiaSchool of Electrical and Computer Engineering, Addis Ababa University, Addis Ababa, EthiopiaThis paper presents a method for controlling the prosthetic leg using surface Electromyography (sEMG) signals, Artificial Neural Network (ANN), and Super Twisting Sliding Mode Control (ST-SMC). The triggering signal is extracted from the user’s muscles and intense signal preprocessing that includes filtering, rectification, linearization, and Mean Average Value (MAV) feature extraction. The ANN predicts joint angles for walking, upstairs, and downstairs using the processed sEMG signals of the muscles and measured and filtered target joint angles. The neural network structure is built using Feed-forward Neural Network (FFNN) architecture and Levenberg-Marquardt (LM) back-propagation training algorithm for accuracy, fast convergence, and reliable optimization of nonlinear relationships. The ST-SMC controller regulates the motion of the prosthetic joints according to specified reference trajectories. MATLAB signal analyzers, neural network fitting packages, and Simulink are used to preprocess signals, train the FFNN for dynamic modeling of the system, and design controllers. The proposed ST-SMC is compared with conventional SMC. Simulation results show that training the neural network with processed data increases regression value and decreases trajectory tracking mean squared error (MSE). The controller’s robustness against internal parameter change and external environmental changes is demonstrated through parameter variation and disturbance analysis.https://ieeexplore.ieee.org/document/10870247/Artificial neural network (ANN)prostheticsuper twisting sliding mode control (ST-SMC)surface electromyography (sEMG)
spellingShingle Adisu Tadese Demora
Chala Merga Abdissa
Neural Network-Based Lower Limb Prostheses Control Using Super Twisting Sliding Mode Control
IEEE Access
Artificial neural network (ANN)
prosthetic
super twisting sliding mode control (ST-SMC)
surface electromyography (sEMG)
title Neural Network-Based Lower Limb Prostheses Control Using Super Twisting Sliding Mode Control
title_full Neural Network-Based Lower Limb Prostheses Control Using Super Twisting Sliding Mode Control
title_fullStr Neural Network-Based Lower Limb Prostheses Control Using Super Twisting Sliding Mode Control
title_full_unstemmed Neural Network-Based Lower Limb Prostheses Control Using Super Twisting Sliding Mode Control
title_short Neural Network-Based Lower Limb Prostheses Control Using Super Twisting Sliding Mode Control
title_sort neural network based lower limb prostheses control using super twisting sliding mode control
topic Artificial neural network (ANN)
prosthetic
super twisting sliding mode control (ST-SMC)
surface electromyography (sEMG)
url https://ieeexplore.ieee.org/document/10870247/
work_keys_str_mv AT adisutadesedemora neuralnetworkbasedlowerlimbprosthesescontrolusingsupertwistingslidingmodecontrol
AT chalamergaabdissa neuralnetworkbasedlowerlimbprosthesescontrolusingsupertwistingslidingmodecontrol