Modelli di risposta in frequenza
Un modello di risposta in frequenza è la risposta in frequenza di un sistema lineare, valutata su un intervallo di valori di frequenza. Il modello è rappresentato da un oggetto del modello idfrd che memorizza la risposta in frequenza, il tempo di campionamento e le informazioni sul canale di input-di output.
App
| System Identification | Identify models of dynamic systems from measured data |
Attività di Live Editor
| Stima del modello spettrale | Estimate spectral model using time-domain data in the Live Editor (Da R2021b) |
Funzioni
Argomenti
- What Is a Frequency-Response Model?
A frequency-response model is the frequency response of a linear system evaluated over a range of frequency values.
- Estimate Frequency-Response Models in the App
You must have already imported your data into the app and performed any necessary preprocessing operations.
- Estimate Frequency-Response Models at the Command Line
Estimate frequency-response models using
etfe,spa, andspafdrcommands. - Selecting the Method for Computing Spectral Models
How to select the method for computing spectral models during estimation in the app and at the command line.
- Controlling Frequency Resolution of Spectral Models
Controlling frequency resolution of spectral models during estimation in the app and at the command line.
- Spectrum Normalization
The spectrum of a signal is the square of the Fourier transform of the signal.
