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Purpose
Computes the RMS response of the given frequency response function xf or autospectra a to a unity white noise input over the frequency range w.
Syntax
rm = feval(id_rc('@rms'),t,w) rm = feval(id_rc('@rms'),a,w,1)
Description
The presence of a third input argument indicates that an autospectrum a is used (instead of frequency response function xf).
A trapezoidal integration is used to estimate the root mean squared response
rms = 

 = 


If xf is a matrix containing several column FRF, the output is a row with the RMS response for each column.
Warning
If only positive frequencies are used in w, the results are multiplied by 2 to account for negative frequencies.
See also