ヘルプセンターヘルプセンター

データの変換

時間領域と周波数領域間のデータの変換

関数

`fft`	Transform `iddata` object to frequency domain data
`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

例および操作のヒント

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.

概念

Supported Data Transformations
Transform between time-domain and frequency-domain data at the command line.
時間領域と周波数領域間のデータの変換
時間領域と周波数領域間の iddata オブジェクトをコマンドラインで変換します。
Transforming Between Frequency-Domain and Frequency-Response Data
Transform between iddata and idfrd objects at the command line.