finding the height of peaks in ppg signal

how can i find the height of the highest peaks in this signal?

Answer 1

[Prakhar Rai]

You could use findpeaks() to find height of the highest peaks.

Please go through these documentations: findpeaks peakAnalysis

[Mayukh Biswas]

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