| slovo | definícia |
signal-to-noise ratio
(encz) | signal-to-noise ratio, n: |
signal-to-noise ratio
(wn) | signal-to-noise ratio
n 1: the ratio of signal intensity to noise intensity [syn:
signal-to-noise ratio, signal-to-noise, {signal/noise
ratio}, signal/noise, S/N] |
signal-to-noise ratio
(foldoc) | signal-to-noise ratio
SNR
S/N ratio
1. (SNR, "s/n ratio", "s:n ratio") "Signal"
refers to useful information conveyed by some communications
medium, and "noise" to anything else on that medium. The
ratio of these is usually expressed logarithmically, in
decibels.
2. The term is often applied to Usenet
newsgroups though figures are never given. Here it is quite
common to have more noise (inappropriate postings which
contribute nothing) than signal (relevant, useful or
interesting postings). The signal gets lost in the noise
when it becomes too much effort to try to find interesting
articles among all the crud. Posting "noise" is probably the
worst breach of netiquette and is a waste of bandwidth.
[Jargon File]
(1996-01-29)
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signal-to-noise ratio
(jargon) | signal-to-noise ratio
n.
[from analog electronics] Used by hackers in a generalization of its
technical meaning. ‘Signal’ refers to useful information conveyed by some
communications medium, and ‘noise’ to anything else on that medium. Hence a
low ratio implies that it is not worth paying attention to the medium in
question. Figures for such metaphorical ratios are never given. The term is
most often applied to Usenet newsgroups during flame wars. Compare {
bandwidth}. See also coefficient of X, lost in the noise.
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