Periodic

Fft of non periodic signal

Fft of non periodic signal
  1. Can Fourier transform be used for non periodic signal?
  2. How do you find the frequency of a non periodic signal?
  3. Can Fourier series represent non periodic function?

Can Fourier transform be used for non periodic signal?

Fourier series is defined for periodic signals and the Fourier transform can be applied to aperiodic (occurring without periodicity) signals.

How do you find the frequency of a non periodic signal?

A truly non-periodic signal doesn't have a repeating pattern and as a result the signal only occurs once over any stretch of time. So its frequency is 1 occurence/infinite time or practically 0 Hz.

Can Fourier series represent non periodic function?

No. A property of Fourier transform is that periodicity in one domain corresponds to discreteness in the other. Fourier series is a discrete function, therefore the time domain function must be periodic.

Filter Why the sum of filter coefficients of an FIR filter does not add to 1?
Why the sum of filter coefficients of an FIR filter does not add to 1?
What are filter coefficients in FIR filter?How do you normalize FIR filter coefficients?How do I combine two FIR filters?What is the number of filter...
Amplitude How to get amplitude of harmonics from amplitude relation?
How to get amplitude of harmonics from amplitude relation?
How do you determine the amplitudes of harmonics?What is harmonic amplitude?How do you find the amplitude of a second harmonic?How do you find the re...
Phase Why does an FFT-based filter change phase?
Why does an FFT-based filter change phase?
Do filters cause phase shift?Does FFT give phase?How does FFT filter work?What is FFT phase spectrum? Do filters cause phase shift?Filters, however,...