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Ansoft Designer / Ansys Designer 在线帮助文档：

System Simulator >
System Component Models >
Vector >
   Vector Inverse Fast Fourier Transform (VIFFT)       

Vector Inverse Fast Fourier Transform (VIFFT)

 

 


Property

Description

Units

Default

Range/Type

Fftl

Fourier transform length

None

1024

[1, Inf)/integer

RIN

Input impedance

Ohm

Inf

(0, Inf]/Real

ROUT

Output impedance

Ohm

0

[0, Inf)/Real

Ports

Input

Input signal (complex vector)

Output

Output signal (complex vector)

 

Notes

This model performs IFFT on the incoming vector signal. If the width of the input vector signal is smaller than “fftl”, zeros are padded. If “fftl” is not a power of 2, it will modified to the next power of 2.

Netlist Form

VIFFT:NAME n1 n2 fftl=val [Rin=val] [Rout=val]

Netlist Example

VIFFT:1 1 2 fftl = 256



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