bandwidth - Frequency response bandwidth
Syntax
fb = bandwidth(sys)
fb = bandwidth(sys,dbdrop)
Description
fb = bandwidth(sys) computes
the bandwidth fb of the SISO model sys,
defined as the first frequency where the gain drops below 70.79 percent
(-3 dB) of its DC value. The frequency fb is expressed
in radians per second.
You can create sys using tf,
ss, or zpk. See ltimodels for
details. For FRD models, bandwidth uses the first
frequency point to approximate the DC gain.
fb = bandwidth(sys,dbdrop)
further specifies the critical gain drop in dB. The default value
is -3 dB, or a 70.79 percent drop.
If sys is an S1-by...-by-Sp array of LTI
models, bandwidth returns an array of the same
size such that
fb(j1,...,jp) = bandwidth(sys(:,:,j1,...,jp))
See Also
dcgain, issiso, ltimodels
 | balred | | bdschur |  |
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