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finding the height of peaks in ppg signal

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Mayukh Biswas
Mayukh Biswas 2021-6-29
评论： Mayukh Biswas 2021-6-29
how can i find the height of the highest peaks in this signal?

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回答（1 个）

Prakhar Rai
Prakhar Rai 2021-6-29
You could use findpeaks() to find height of the highest peaks.
Please go through these documentations: findpeaks peakAnalysis
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Mayukh Biswas
Mayukh Biswas 2021-6-29
s11v2=xlsread('s11_v2_128Hz_ppg_happy.xlsx','Sheet1','A1:B8064');
time=s11v2(:,1);
amplitude=s11v2(:,2);
plot(time,amplitude);
num=[1 1 1 1 1 1 1 1];
den=[8 0];
y=filter(num,den,amplitude);
plot(time,amplitude,time,y);
xlim([0 5])
y1 = highpass(y,1,128);
figure
plot(y1)
findpeaks(y1)
i need the code to find the height of these peaks urgently

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