Real

Fast Fourrier Transform of real measurements in Matlab

Fast Fourrier Transform of real measurements in Matlab
  1. Where FFT is used in real life?
  2. What is a real FFT?
  3. Is FFT real time?

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 a real FFT?

The real portion of an FFT result is how much each frequency component resembles a cosine wave, the imaginary component, how much each component resembles a sine wave.

Is FFT real time?

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. See also DFT.

Transform Is there an analogue to the 2D DFT that is rotation equivariant?
Is there an analogue to the 2D DFT that is rotation equivariant?
Is Fourier transform a rotation?What is 2D DFT in digital image processing?Why is DFT mirrored?Is DFT shift invariant? Is Fourier transform a rotati...
Nyquist Other end of Nyquist limit
Other end of Nyquist limit
What happens to the signal if it is sampled below Nyquist limit?What value is the Nyquist limit?What happens above Nyquist frequency?Why the Nyquist ...
Fading How to code Rician fading channel gains from k-factor?
How to code Rician fading channel gains from k-factor?
What is K-factor in Rician fading?How to generate rician fading channel in matlab?How do you model for fading channel?What is rician fading channel? ...