signal-to-noise ratio

sig·nal-to-noise ratio

(sĭg′nəl-tə-noiz′)

n.

1. The ratio of the power of an electrical, electromagnetic, or optical signal to the power of background noise accompanying the signal.

2. The ease with which useful information can be discerned in the context of much noise, talk, or undesired information.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

signal-to-noise ratio

n

(Electronics) the ratio of one parameter, such as power of a wanted signal to the same parameter of the noise at a specified point in an electronic circuit, etc

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

signal-to-noise ratio

The ratio of the amplitude of the desired signal to the amplitude of noise signals at a given point in time.

Dictionary of Military and Associated Terms. US Department of Defense 2005.

Thesaurus

Noun

1.

signal-to-noise ratio - the ratio of signal intensity to noise intensity S/N, signal/noise, signal/noise ratio, signal-to-noise ratio - the relative magnitudes of two quantities (usually expressed as a quotient)

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