FFT
This block outputs the FFT or or the inverse FFT (IFFT) of its input vector/matrix.
Library
Activate/MatrixOperations
Description
This block outputs the FFT or or the inverse FFT (IFFT) of its input vector/matrix.
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
algo | Method | FFT/IFFT computing method | String | 'FFTW' |
direction | Function | Function that is applied to the input vector/matrix. The choices are FFT or IFFT (inverse FFT). | String | 'FFT' |
nonpow2 | If non-power-of-2 | String | 'Zero-padding' | |
externalActivation | External activation | Specifies whether the block receives an external activation or inherits its activation through its regular input ports. When External Activation is selected, an additional activation port is added to the block. By default, external activation is not selected. | Number | 0 |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
Port 1 | explicit | input | 1 | |
Port 2 | explicit | output | 1 | |
Port 3 | activation | input | externalActivation |
Advanced Properties
| Name | Value | Description |
|---|---|---|
always active | no | |
direct-feedthrough | yes | |
zero-crossing | no | |
mode | no | |
continuous-time state | no | |
discrete-time state | no |