Fixed Point Radix-4 FFT
Radix-4 FFT Test Script
This file runs three versions of a Radix-4 FFT written in MATLAB:
radix4FFT1_Float.m computes a radix-4 FFT for floating point data types
radix4FFT2_FixPt.m computes a fixed point radix-4 FFT (requires Fixed Point Toolbox)
radix4FFT3_FixPtEML.m is an Embedded MATLAB version of the radix-4 FFT that can be used in Simulink. You can also generate C code for this code (using Real Time Workshop). This version can also be compiled into a MEX'd executable that runs significantly faster than the fixed point code.
Cite As
Mike Donovan (2024). Fixed Point Radix-4 FFT (https://www.mathworks.com/matlabcentral/fileexchange/22326-fixed-point-radix-4-fft), MATLAB Central File Exchange. Retrieved .
MATLAB Release Compatibility
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- Signal Processing > Signal Processing Toolbox > Transforms, Correlation, and Modeling > Transforms > Discrete Fourier and Cosine Transforms > Fast Fourier Transforms >
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