njit-etd2003-081 - New Jersey Institute of Technology

LIST OF FIGURES
Figure
Page
2.1 The heart 15
2.2 The systemic and pulmonary circulations 16
2.3 The intrinsic conduction system of the heart 17
2.4 The sequence of cardiac excitation 19
2.5 The sympathetic nervous system and parasympathetic nervous system 26
2.6 Autonomic innervation of the heart 30
2.7 Effect of autonomic stimulation on the slope of the pacemaker potential 31
2.8 An electrocardiogram tracing (lead I) 34
2.9 The ECG placement of the positive and negative electrodes 36
3.1 Classes of time-frequency distributions 46
3.2 The Wigner distribution of the sum of two finite duration sine waves 60
3.3 The Performance of the Choi-William distribution 64
3.4 Division of the frequency domain for the STFT and the Wavelet
Transform 70
3.5 The time-frequency plane resolution cells of the STFT vs. WT 72
3.6 Figure depicting the construction of the MI signal 78
3.7 MI and IIBI signals of heart rate 79
3.8 Power spectrum of the heart rate IIBI signal 81
3.9 Plot of the split cosine bell taper used as a window in the FFT calculation 82
3.10 Example of power spectral density of HRV 83
3.11 One minute plot of raw blood pressure and its IBM signal 85
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