ライブ エディター タスク
|スペクトル モデルの推定||Estimate spectral model using time-domain data in the Live Editor|
|Estimate frequency response and spectrum using spectral analysis with frequency-dependent resolution|
|Frequency response data or model|
- Estimate Frequency-Response Models in the App
You must have already imported your data into the app and performed any necessary preprocessing operations. For more information, see データの準備.
- Estimate Frequency-Response Models at the Command Line
You can use the
spafdrcommands to estimate spectral models. The following table provides a brief description of each command and usage examples.
- 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. The model is represented by an
idfrdmodel object that stores the frequency response, sample time, and input-output channel information.
- Data Supported by Frequency-Response Models
Characteristics of data supported for estimation of spectral analysis models.
- 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. The spectral estimate using the commands
etfeis normalized by the sample time T: