ifft

Transform iddata objects from frequency to time domain

Syntax

dat = ifft(Datf)

Description

ifft transforms a frequency-domain iddata object to the time domain. It requires the frequencies on Datf to be equally spaced from frequency 0 to the Nyquist frequency. This means that if there are N frequencies in Datf and the sample time is Ts, then

Datf.Frequency = [0:df:F], where F is pi/Ts if N is odd and F = pi/Ts*(1-1/N) if N is even.

Version History

Introduced in R2007a