function [brEst, hrEst] = autoEstimation(br_signal,hr_signal,param) b_cut = br_signal; h_cut = hr_signal; bauto = xcorr(b_cut); hauto = xcorr(h_cut); [bpeaks,~] = findpeaks(bauto); [hpeaks,~] = findpeaks(hauto); brEst = (length(bpeaks)/2) * 60/(param.endsec - param.startsec); hrEst = (length(hpeaks)/2) * 60/(param.endsec - param.startsec); N = param.samplerange; t = linspace(param.startsec,param.endsec,N); figure subplot(2,1,1) plot(t,bauto(1:N)) title("Autocorrelated Breathing Signal") subplot(2,1,2) plot(t,hauto(1:N)) title("Autocorrelated Heartbeat Signal") end