Any continuous time sequence or signal can be expressed as an infinite superposition of sinusoidal signals of different frequencies. The Fu Liye transform algorithm based on the principle is used to calculate the frequency, amplitude and phase of different sine wave signals by accumulating the original signals directly. Of course, this is the Fu Liye transformation from a mathematical point of view.

Filename	Size	Update
fft - 副本.c	3288	2018-03-11

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