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Results tagged with fourier-transform
Search options questions only
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user 13525
The Fourier transform decomposes a signal (a function of time) into frequencies, giving the energy at each frequency.
15
votes
1
answer
9k
views
Characteristic function and Fourier transform
I understand the definition of characteristic functions used in
probability theory:
For a random Variable $X$ with probability density function $f_X$ the characteristic function is defined as:
$$\phi_ …
- 1,401
3
votes
1
answer
697
views
Deconvolution with fourier transform or characteristic function?
Let us consider the following model:
$$Y_j = X_j + \epsilon_j \hspace{15pt} j=1, ..., n$$
Where $Y_j$ is a noisy signal, $\epsilon_j$ is the noise which is independend from the signal $X_j$. We have …
- 1,401