Practical application of complex FFT

1. What are the applications of FFT?
2. Where is FFT used in real life?
3. What is complex FFT?
4. What are some practical applications of a fast Fourier transform in digital signal processing?

What are the applications of FFT?

FFT Applications

These techniques can be used for a variety of signals such as audio and speech, radar, communication, and other sensor data signals. FFT is also sometimes used as an intermediate step for more complex signal processing techniques. In image processing, FFT is used for filtering and image compression.

Where is FFT used in real life?

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

What is complex FFT?

An example of an application where you use complex FFT is when the signal consists of both a real and an imaginary component. A signal consisting of a real and an imaginary component occurs frequently in the field of telecommunications, where you modulate a waveform by a complex exponential.

What are some practical applications of a fast Fourier transform in digital signal processing?

Applications. The FFT is used in digital recording, sampling, additive synthesis and pitch correction software. The FFT's importance derives from the fact that it has made working in the frequency domain equally computationally feasible as working in the temporal or spatial domain.