Can I make the loop not count the t-waves in a ECG signal?

Question

Maria Goncalves Møller 2018-5-17

0
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https://ww2.mathworks.cn/matlabcentral/answers/401160-can-i-make-the-loop-not-count-the-t-waves-in-a-ecg-signal

回答： Sandro Lecci 2018-5-17

采纳的回答： Sandro Lecci

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Hi, I have trouble making my matlab loop count only my R waves of the ECG signal. The loop counting the peaks is:

thr = 40;

beat_count = 0;

for k = 2 : length(sig)-1

   if( sig(k) > thr && sig(k-1) < thr) 
        beat_count = beat_count + 1; 
        id(beat_count) = k; 
    end

end

Some of the T-waves is the same height. I suggest making some sort of delay, so that the counter won't count until 0.3 seconds have passed since that is the maximum speed of the heart beats, and any peak within this time must be a t-wave. Can anybody help with this?