TY - GEN
T1 - Adaptive user-specified control of movements with Functional Neuromuscular Stimulation
AU - Kataria, Pankaj
AU - Abbas, James J.
PY - 1999
Y1 - 1999
N2 - Functional Neuromuscular Stimulation (FNS) systems can provide a person with thoracic level spinal cord injury the ability to stand, with limited maneuverability. We aim to develop a system that enhances maneuvering ability by providing the user with control of stimulation to adjust limb position, but nonlinear system properties make it difficult for the user to control limb position. In this work, we have implemented an adaptive neural network controller to linearize the system input/output properties as seen by the user. We have tested our controller on a model of a swinging lower leg that is controlled via stimulation. The results of a series of simulations indicate that the adaptive controller can successfully linearize input/output properties for a wide range of model parameters and also that the controller performs well over a wide range of values of learning rate and network size.
AB - Functional Neuromuscular Stimulation (FNS) systems can provide a person with thoracic level spinal cord injury the ability to stand, with limited maneuverability. We aim to develop a system that enhances maneuvering ability by providing the user with control of stimulation to adjust limb position, but nonlinear system properties make it difficult for the user to control limb position. In this work, we have implemented an adaptive neural network controller to linearize the system input/output properties as seen by the user. We have tested our controller on a model of a swinging lower leg that is controlled via stimulation. The results of a series of simulations indicate that the adaptive controller can successfully linearize input/output properties for a wide range of model parameters and also that the controller performs well over a wide range of values of learning rate and network size.
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M3 - Conference contribution
AN - SCOPUS:0033357027
SN - 0780356756
T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
SP - 604
BT - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
PB - IEEE
T2 - Proceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS)
Y2 - 13 October 1999 through 16 October 1999
ER -