TEAP (Toolbox for Emotion Analysis using Physiological Signals) doc
ECG_feat_IBIvar.m
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16 %> @file ECG_feat_IBIvar.m
17 %> @brief Computes the InterBeatInterval variance of an ECG signal
18 %> @param ECGSignal: the ECG signal
19 %> @retval IBIVar: the InterBeatInterval variance
20 %
21 %> @author Copyright Guillaume Chanel 2013
22 %> @author Copyright Frank Villaro-Dixon, 2014
23 function IBIVar = ECG_feat_IBIvar(ECGSignal)
24 
25 
26 %Make sure we have an ECG signal
27 ECGSignal = ECG__assert_type(ECGSignal);
28 
29 
30 %Compute the results
31 
32 rawSignal = Signal__get_raw(ECGSignal);
33 samprate = Signal__get_samprate(ECGSignal);
34 
35 newfs = 256; %Hz, as needed by rpeakdetect
36 ECG = downsample(rawSignal, samprate/newfs);
37 [hrv, R_t, R_amp, R_index, S_t, S_amp] = rpeakdetect(ECG, newfs);
38 [BPM IBI] = correctBPM(R_index, newfs);
39 
40 IBIVar = var(IBI);
41 
42 end
43 
Signal__get_samprate
function Signal__get_samprate(in Signal)
Signal__get_raw
function Signal__get_raw(in Signal)
ECG__assert_type
function ECG__assert_type(in Signal)
ECG_feat_IBIvar
function ECG_feat_IBIvar(in ECGSignal)
rpeakdetect
function rpeakdetect(in data, in samp_freq, in thresh, in testmode)
correctBPM
function correctBPM(in listePic_in, in fe, in thresh)