ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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vol 63 / August, 2020
Article

DOI 10.17586/0021-3454-2019-62-12-1098-1104

UDC 612.743, 612.817.2

METHODS OF THE HAND ELECTROMYOGRAM ANALYSIS

R. Y. Budko
Southern Federal University, Institute of Nanotechnologies, Electronics and Instrumentation;


N. N. Chernov
Southern Federal University, Institute of Nanotechnologies, Electronics and Instrumentation;


N. A. Budko
Southern Federal University, Institute of Nanotechnologies, Electronics and Instrumentation;


Abstract. Comparison of the effectiveness of the convolutional neural network (CNN) and radial basis func-tions (RBFs) algorithms in the processing of forearm electromyograms (EMG) obtained over several days is performed. Pre-processed signal is used as the input data, the CNN algorithm is applied as the input feature vector for the raw data. The both methods are shown to have several perspectives for the use in device control tasks. The CNN is able to recognize the characteristic signs of EMG without prelimi-nary signal processing, despite their stochastic nature. This allows to provide feature selection or trans-formation of the signal before classification. The method of data classification with pre-processing demonstrates greater recognition accuracy for RBF. A pronounced dependence of the recognition accu-racy on the subject and on the time between obtaining samples was obtained. Thus, although the SNA algorithm showed good results for the raw EMG signal, the training sample with multi-day data allowed to achieve stable performance, which imposes limitations on its use in clinical systems.
Keywords: electromyogram, prosthesis, biocontrol, human-machine interface, machine learning, artificial neural networks

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