2
votes
2
votes
Accepted
What is the rationale behind the "same" mode of discrete convolution?
I think that the only reason why the same mode exists is because sometimes it is convenient if the output has the same length as the input (assuming that the input ...
- 88.9k
2
votes
Accepted
Fourier transform of $|x_\mathrm{a}(t)|^2$
Your result is correct, but it can be simplified by noticing that the two integrals in your solution are actually identical, which for $f>0$ leads to
$$\mathscr{F}\left\{|x_\mathrm{a}(t)|^2\right\}=...
- 88.9k
1
vote
Accepted
Continuous-time convolution of signals with negative amplitudes
My question is, what is the correct way of dealing with this kind of signals, does the negative amplitude effect the results and does it change the output of LTI system, am I right or mistaken?
You ...
- 42.5k
1
vote
Filtering in time domain vs filtering in frequency domain
QUESTION : Why is the output signal shifted in time domain? Is this because multiplication in frequency domain corresponds to convolution in time domain?
A windowed sync is non-causal. In order to be ...
- 42.5k
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