S domain vs frequency domain? - Signal Processing Stack Exchange
Jan 18, 2023 · 2 Laplace domain is also known as "s domain". Is there any difference between "s domain" and "frequency domain"? Can we use both terms interchangeably? If we want to …
What does frequency domain denote in case of images?
Mar 8, 2017 · 135 I was just learning about the frequency domain in images. I can understand the frequency spectrum in case of waves. It denotes what frequencies are present in a wave. If we …
continuous signals - Understanding the frequency domain - Signal ...
I found general explanations on the Internet, for example: frequency-domain graph shows how much of the signal lies within each given frequency band over a range of frequencies Fourier …
What is the physical significance of negative frequencies?
Oct 17, 2011 · The standing wave (in time domain) can be represented as a sum of two oppositely moving traveling waves (in frequency domain with positive and negative k vector, or …
Determining the noise floor of a signal in the frequency domain
Apr 13, 2017 · 2 You need to normalize your data based on the type of window you are using to obtain your frequency domain representation of the data. The normalization differs depending …
Why should I zero-pad a signal before taking the discrete Fourier ...
You may not need to zero pad the signal at all! 1) Lengthen the time-domain data (not zero padding) to get better resolution in the frequency domain. 2) Increase the number of FFT …
Intuitive explanation of cross-correlation in frequency domain
Apr 20, 2015 · According to the cross-correlation theorem : the cross-correlation between two signals is equal to the product of fourier transform of one signal multiplied by complex …
fourier transform - Energy calculation in frequency domain - Signal ...
Energy calculation in frequency domain Ask Question Asked 10 years, 9 months ago Modified 5 years, 9 months ago
image processing - What is the relation between time, frequency ...
What is the relation between time, frequency, spatial and spectral domains? I think that time and spatial domains are the "original" domains (e.g. if the signal is a greyscale image, then the dom...
How to construct covariance matrix on frequency domain
Dec 19, 2024 · When we use time domain received signal to construct the interference and noise covariance matrix, sometimes the undesired clutter will also be included and affect the …