FFT

This block outputs the FFT or or the inverse FFT (IFFT) of its input vector/matrix.

    FFT

Library

Activate/MatrixOperations

Description

This block outputs the FFT or or the inverse FFT (IFFT) of its input vector/matrix.

Parameters

FFT_0

NameLabelDescriptionData TypeValid 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'
'IFFT'

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
1

Ports

NameTypeDescriptionIO TypeNumber

Port 1

explicit

input

1

Port 2

explicit

output

1

Port 3

activation

input

externalActivation

Advanced Properties

NameValueDescription

always active

no

direct-feedthrough

yes

zero-crossing

no

mode

no

continuous-time state

no

discrete-time state

no