How MATLAB fft processes data which length is not equal to 2^p (p = 1,2,...)
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Can someone let me know "How MATLAB fft processes data which length is not equal to 2^p (p = 1,2,...)"?
More specifically if data length = n * 2^7 = n*128, when the length is not one of 2^p (p = 7,8,9, ...).
Thanks
Chen
2 Comments
Dyuman Joshi
on 2 Aug 2023
If I understood your query properly, this should help - More About section of the FFT Documentation
Answers (1)
Bruno Luong
on 2 Aug 2023
MATLAB FFT use FFT in the est library.
The reference here explain the algorithm http://www.fftw.org/fftw-paper-ieee.pdf
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