This function does the same as interpft of MatLAB, but it is much simpler and makes it easy to understand how the frequency domain zero padding (FDZP) resampling works.
Dr. Erol Kalkan, P.E. (2021). Frequency-domain Zero-padding Resampling (Interpolation) (https://www.mathworks.com/matlabcentral/fileexchange/58854-frequency-domain-zero-padding-resampling-interpolation), MATLAB Central File Exchange. Retrieved .
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