FFT algorithm for real-time analysis

1. Where FFT is used in real life?
2. What is FFT algorithm used for?
3. What is real time FFT?
4. Why FFT analysis is used?

Where FFT is used in real life?

It is used in designing electrical circuits, solving differential equations , signal processing ,signal analysis, image processing & filtering.

What is FFT algorithm used for?

The FFT algorithm is one of the heavily used in many DSP applications. It is used whenever the signal needs to be processed in the spectral, or frequency domain. It is so efficient to implement, that sometimes even FIR filtering functions are performed using an FFT.

What is real time FFT?

The Real-time FFT. FFT is a frequency analysis mechanism that aims at faster conversion of a discrete signal in time domain into a discrete frequency domain representation.

Why FFT analysis is used?

In a complex signal, the FFT helps the engineer to determine the frequencies that are being excited and the amplitude at each frequency. Additionally, it highlights the changes at the frequency and amplitude and the harmonic excitation in a frequency range.