Need FFT code without inbuilt function.

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Siddhant Sharma 2020-11-2

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评论： Siddhant Sharma 2020-11-2

I need the code for FFT (not DFT) in MATLAB for any sequence of any length N = 2^r but am unable to write it. Does anyone else know the code?

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Ameer Hamza 2020-11-2

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https://ww2.mathworks.cn/matlabcentral/answers/633569-need-fft-code-without-inbuilt-function#answer_531479

Check the following FEX submissions:

https://www.mathworks.com/matlabcentral/fileexchange/23461-fft

https://www.mathworks.com/matlabcentral/fileexchange/71779-fast-fourier-transform-fft-algorithms

https://www.mathworks.com/matlabcentral/fileexchange/44792-matlab-code-for-fast-fourier-tranform-fft

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Siddhant Sharma 2020-11-2

I am looking for fft by decimation of time method, the last two are more like simple dft.

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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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