Frequenzgangmodelle
Ein Frequenzgangmodell ist der Frequenzgang eines linearen Systems, der über einen Bereich von Frequenzwerten hinweg evaluiert wird. Das Modell wird durch ein idfrd-Modellobjekt dargestellt, in dem der Frequenzgang, die Abtastzeit und die Eingangs-/Ausgangs-Kanalinformationen gespeichert werden.
Apps
| System Identification | Identifizieren von Modellen dynamischer Systeme anhand von Messdaten |
Live Editor Tasks
| Schätzen des Spektralmodells | Estimate spectral model using time-domain data in the Live Editor (Seit R2021b) |
Funktionen
Themen
- 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.
