fft_split.m Split the FFT of two real sequences - File Exchange - MATLAB Central
What does the real and imaginary part mean in the output of MATLAB built-in 'fft' function? When both the real, and imaginary parts are zero, what is their physical significance? - Quora
Zero Padding
Engineering Math | ShareTechnote
Real and imaginary MR signals - Questions and Answers in MRI
Why FFT of a rectangular pulse has imaginary part while the sinc function is real? - Signal Processing Stack Exchange
MSP Tutorial 26: Frequency Domain Signal Processing with pfft~
Fourier transform - Wikipedia
4. Frequency and the Fast Fourier Transform - Elegant SciPy [Book]
signal analysis - Signification of alternating signs of imaginary and real part of an FFT - Signal Processing Stack Exchange
Lesson_11
FFT output
Matlab: for even real functions, FFT complex result, IFFT real result - Stack Overflow