User`s guide

chgunits
11-33
11chgunits
Purpose Convert the frequency units of an FRD model
Syntax sys = chgunits(sys,units)
Description sys = chgunits(sys,units) converts the units of the frequency points stored
in an FRD model,
sys to units,whereunits is either of the string s 'Hz' or
'rad/s'. This operation changes the assigned frequencies by applying the
appropriate (
2*pi) scaling factor, and the 'Units' property is updated.
If the
'Units' field already matches units,noconversionismade.
Example w = logspace(1,2,2);
sys = rss(3,1,1);
sys = frd(sys,w)
From input 'input 1' to:
Frequency(rad/s) output 1
---------------- --------
10 0.293773+0.001033i
100 0.294404+0.000109i
Continuous-time frequency response data.
sys = chgunits(sys,'Hz')
sys.freq
ans =
1.5915
15.9155
See Also frd Create or convert to an FRD model
get Get the properties of an LTI model
set Set the properties of an LTI model