| 单词 | signal-to-noise ratio |
| 释义 | > as lemmassignal-to-noise ratio signal-to-noise ratio n. (a) the ratio of the strength of a desired signal to that of unwanted noise or interference; (b) colloquial (chiefly Computing) a measure of how much useful information there is in a system, such as the internet, as a proportion of the entire contents.The signal-to-noise ratio of an electrical signal is typically expressed in decibels. ΘΚΠ society > communication > telecommunication > [noun] > signal > noise or interference > signal-to-noise ratio signal/noise ratio1923 signal-to-noise ratio1923 the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > signal > [noun] > unwanted part of signal > signal or noise ratio signal/noise ratio1923 signal-to-noise ratio1923 1923 Bell Syst. Tech. Jrnl. 2 139 The signal to noise ratio reaches its minimum during the time when the sunset period intervenes between London and New York. 1966 D. G. Brandon Mod. Techniques Metallogr. 239 The overall quantum efficiency..is only limited by the necessity to achieve a reasonable signal-to-noise ratio in the emulsion. 1994 AUUGN Apr. 72/2 There is a very active mailing list which has an excellent signal-to-noise ratio and carries lots of good info. 2005 Digital Photographer No. 31. 94/2 This results in an improved signal-to-noise ratio, more consistent colour reproduction [etc.]. 2008 Jason Kelly (Nexis) 10 Nov. Most internet databases are not worth your time. The data is often wrong,..creating a low signal-to-noise ratio. < as lemmas |
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