signal manually analysis matlab
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f interest to analyse not specific values.
1 个评论
Abderrahim. B
2022-7-13
编辑：Abderrahim. B
2022-7-13
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Are you trying to extract a region of interest (ROI)t from EMG signal ? Do you know limits (end time and start time) of the ROI ?
回答（1 个）
% Some dummy data
emg_signal = [-10*ones(4000,1) ; -500*ones(8000,1); -15*ones(6000,1) ] ;
% emcg_signal = 1rand()
figure
plot(emg_signal, "LineWidth", 2)
% ROI emg
roi_t = 4000:8000 ;
emg_roi = emg_signal(roi_t) ;
% Some spectral analysis of ROI emg
pspectrum(emg_roi)
2 个评论
C S
2022-7-13
Abderrahim. B
2022-7-14
Use input then . Copy, past and run this code in your MATLAB. input function will not run here (it is not supported).
clear ;
close all ;
% Some dummy data
emg_signal = [-10*ones(4000,1) ; -500*ones(8000,1); -15*ones(6000,1) ] ;
% emcg_signal = 1rand()
plot(emg_signal, "Color", 'k')
title("EMCG Signal")
% ROI emcg
roi_t = input("Enter ROI as row vector (e.g 4000:8000): ") ;
emg_roi = emg_signal(roi_t) ;
% Some spectral analysis of ROI emg
figure
pspectrum(emg_roi)
title("EMG ROI Spectrum ")
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