x=train_data(91,:,1); N = 1000; fs=250; t=(1:N)/fs; Fn=fs/2; Wp = [8 30]/Fn; % Passband Frequency (Normalised) Ws = [7.8 31]/Fn; % Stopband Frequency (Normalised) Rp = 1; % Passband Ripple (dB) Rs = 150; % Stopband Ripple (dB) [n,Ws] = cheb2ord(Wp,Ws,Rp,Rs); % Filter Order [z,p,k] = cheby2(n,Rs,Ws); % Filter Design [sosbp,gbp] = zp2sos(z,p,k); % Filter Signal filtered_signal = filtfilt(sosbp, gbp,x); Z1=filtered_signal; figure spectrogram(Z1,128,120,128,fs,'yaxis') title('SPECTROGRAM of MOTOR IMAGERY EEG SIGNAL CHANNEL C3')
MATLAB: How to save spectrogram of signal as image ? i have given the code.
spectrogram
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