Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9152305 | Respiratory Physiology & Neurobiology | 2005 | 6 Pages |
Abstract
Estimation of mechanical properties of the respiratory system may be disturbed by instrumentation and physical set-up. The effects of lowpass filtering, filter mismatch and inter-channel delay in the digital converter are assessed on numerically simulated signals from a nonlinear model of the respiratory system. Large biases in model parameter estimates (up to about â300% for some parameters) were caused by these instrumental interferences and were reduced by including an inertance in the retrieved model. The results reinforce the importance of a careful evaluation of the instrumental set-up used in physiological measurements.
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Authors
Frederico C. Jandre, Alysson Roncally Silva Carvalho, Alexandre Visintainer Pino, Antonio Giannella-Neto,