Howtosignalprocessing
- What is the effect of zero padding in frequency domain?
- What does zero padding do to FFT?
- How does zero padding affect DFT?
- What is the relation between time domain and frequency domain?
What is the effect of zero padding in frequency domain?
In this case, we can say “zero padding in the frequency domain results in an increased sampling rate in the time domain”.
What does zero padding do to FFT?
In addition to making the total number of samples a power of two so that faster computation is made possible by using the fast Fourier transform (FFT), zero padding can lead to an interpolated FFT result, which can produce a higher display resolution.
How does zero padding affect DFT?
You can interpolate the DFT by zero padding. Zero padding enables you to obtain more accurate amplitude estimates of resolvable signal components. On the other hand, zero padding does not improve the spectral (frequency) resolution of the DFT. The resolution is determined by the number of samples and the sample rate.
What is the relation between time domain and frequency domain?
Parseval's theorem gives the relationship between the squared integral of a time function and that of its Fourier transform, namely, the energy in the time domain is equal to the energy in the frequency domain.
