What is the meaning of signal-to-noise ratio?

(DoD) The ratio of the amplitude of the desired signal to the amplitude of noise signals at a given point in time.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
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APAMilitary Dictionary (DoD). (2011). signal-to-noise ratio. Retrieved October 2, 2026, from http://smartdefine.org/signal-to-noise_ratio/definitions/1963981
ChicagoMilitary Dictionary (DoD). 2011. "signal-to-noise ratio" http://smartdefine.org/signal-to-noise_ratio/definitions/1963981 (accessed October 2, 2026).
HarvardMilitary Dictionary (DoD) 2011, signal-to-noise ratio, Smart Define, viewed 2 October, 2026, <http://smartdefine.org/signal-to-noise_ratio/definitions/1963981>.
MLAMilitary Dictionary (DoD). "signal-to-noise ratio" 4 April 2011. Web. 2 October 2026. <http://smartdefine.org/signal-to-noise_ratio/definitions/1963981>
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