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Transformer les données

Transformer les données entre des domaines temporels et fréquentiels

Fonctions

`fft`	Fast Fourier transform (FFT) of `iddata` object
`ifft`	Transform iddata objects from frequency to time domain
`etfe`	Estimate empirical transfer functions and periodograms
`spa`	Estimate frequency response with fixed frequency resolution using spectral analysis
`spafdr`	Estimate frequency response and spectrum using spectral analysis with frequency-dependent resolution

Exemples et procédures

Transform Time-Domain Data in the App
Transform time-domain data to frequency-domain or frequency-response data.
Transform Frequency-Domain Data in the App
Transform frequency-domain input-output data to time-domain or frequency-response data.
Transform Frequency-Response Data in the App
Transform frequency-response data to frequency-domain input-output data or to frequency-response data with a different frequency resolution.

Concepts

Supported Data Transformations
Transform between time-domain and frequency-domain data at the command line.
Transformer des données entre les domaines temporels et fréquentiels
Transformer des objets iddata entre les domaines temporels et fréquentiels en ligne de commande.
Transforming Between Frequency-Domain and Frequency-Response Data
Transform between iddata and idfrd objects at the command line.