This version (17 Apr 2018 08:55) was approved by Ashwin Radhakrishnan.
Table of Contents
Real IFFT(ADAU145x)
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Real IFFT is a block processing module which computes the IFFT of real signals
Input Pins
| Name | Format [int/dec/float] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: Complex Input | Complex-audio | Input signal to the module |
Output Pins
| Name | Format [int/dec/float] - [control/audio] | Function Description |
|---|---|---|
| Pin 0:Real Output | Decimal-audio | Output signal from the module |
Grow Algorithm
Add and Growth are not supported.
DSP Parameter Information
| GUI Control Name | Compiler Name | Function Description |
|---|---|---|
| splitCoeffsA(Globally defined in FFT)) | RealFFTBlkAlgsplitCoeffsA | Sine coefficients |
| splitCoeffsB(Globally defined in FFT) | RealFFTBlkAlgsplitCoeffsB | Cosine coefficients |
Algorithm Description
This module computes the IFFT for Real input signals. IFFT is computed from the first half of the FFT output,
using the complex conjugate symmetry properties of the FFT output, of real signals.
Example
In the example shown below, IFFT of the FFT output of a real signal is computed, to retrieve the original signal
back in time domain.
Supported IC's
1. ADAU145x
resources/tools-software/sigmastudio/toolbox/frequencydomain/ifft.txt · Last modified: 14 Mar 2018 08:01 by Ashwin Radhakrishnan