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Results tagged with signal
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user 161318
A signal is a stream of information in the form of a varying quantity. Usually in electronics, signals can be in the form of voltages, currents, or radiated electromagnetic fields.
0
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3
answers
345
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Signal to noise in relationship with limit of detection and/or signal strength
My thoughts:
When the signal peak is so low that the blank signal will overlap it, it can't be 3 sigma apart from it. This is obvious. But the signal might be much lower in general. … So maybe my question isn't about LOD or SNR but about: When is my signal strong enough that I can say "There is a signal"? …
- 625
-3
votes
1
answer
146
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What limits the length of a cable? [closed]
As far as I can see this question has not been asked up to now but I'm not quite sure though I'm not an engineer..
But anyhow: Which parameters limit the length of a cable? On the one hand I know ther …
- 625
14
votes
4
answers
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What is the purpose of a carrier signal in communication technology?
What is the carrier signal for when we actually do not care about this but only about the other signal (the useful signal?) … Why isn't only the useful signal used instead of mixing it with the carrier? …
- 625