Biomedical Engineering Reference
In-Depth Information
Fig. 9.12
Impedance in its complex representation and its equivalent Bode plot for healthy
group #1. The
stars
denote estimated impedance using (
3.8
), while a
continuous line
denotes the
averaged values
The respiratory impedance has been estimated by means of (
3.8
) and depicted
by means of its complex representation and its equivalent Bode plot. For healthy
groups, the impedance is given in Figs.
9.12
,
9.13
,
9.14
,
9.15
, and for the diag-
nosed groups, the impedance is depicted in Figs.
9.16
-
9.17
. Their values have been
successfully validated with reference values from (
7.12
).
The distribution, median, and confidence intervals of the impedance values at
each excited frequency points are given in Figs.
9.18
,
9.19
,
9.20
and
9.21
for healthy,