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FFT utility for pdplot data files, optionally use Chirp Z Transform for zooming and Welch's method for smoothing
License: Other
This project forked from omnister/fftp
FFT utility for pdplot data files, optionally use Chirp Z Transform for zooming and Welch's method for smoothing
License: Other
Fftp(1) is a program for generating Fourier spectra from evenly sampled real and complex ASCII data sets. Fftp(1) will perform Welch's smoothing method on large data files and optionally use the Chirp Z Transform to efficiently zoom into portions of the frequency spectrum. Fffp(1) is a classic command-line UNIX program. Fftp(1) handles windowing, conversion to single-sided spectrum, and DC-level correction/nulling. Many hours of corner case testing has been done to ensure that when you need an FFT, you can quickly get an accurate analysis without having to open up a textbook. Fftp(1) outputs the resulting spectrum-analyzer data as an ASCII file ready for plotting in pdplot, gnuplot, or other graphing package. FFtp(1) is self-contained, using only stdio.h, stdlib.h and math.h. Just type "make" and then "make install".
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