The FFT is used to process data throughout today's highly networked, digital world. It allows computers to efficiently calculate the different frequency components in time-varying signals—and also to reconstruct such signals from a set of frequency components.
Where FFT is used in real life?
It is used in designing electrical circuits, solving differential equations , signal processing ,signal analysis, image processing & filtering.
Where is FFT algorithm used?
The FFT algorithm is heavily used in many DSP applications. It is used whenever the signal needs to be processed in the spectral or frequency domain. Because it is so efficient to implement, sometimes even FIR filtering functions are performed using an FFT.
What is the main advantage of FFT?
The main advantage of an FFT is speed, which it gets by decreasing the number of calculations needed to analyze a waveform.