njit-etd2003-081 - New Jersey Institute of Technology

njit-etd2003-081 - New Jersey Institute of Technology njit-etd2003-081 - New Jersey Institute of Technology

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Figure 5.57 Poles and zeros graph of the HRV model using RSP as input and HR IIBI as output. 221

222 Figure 5.58 Bode plot of the HRV model using RSP as input and HR IIBI as output. Figures 5.58 and 5.59 show the poles/zeros plot and the Bode plot of the blackbox model calculated using the rsp as input and iibi as output. Figure 5.60 indicates the comparison between the system and the simulated amplitude and phase response. Notice that even with a simple ARX model, the amplitude and the low frequency phase of the Bode plot of the system and the simulated model match relatively well. The phase plot of the real system and the simulated model seem to diverge greatly for frequencies beyond the cut-off frequency.

Figure 5.57 Poles and zeros graph <strong>of</strong> the HRV model using RSP as input and HR IIBI as<br />

output.<br />

221

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