| signal-to-noise ratio |
For radon and WL detectors, this term expresses the proportion of the number of counts due to exposure to radon or WP (signal) to the number of counts due to background (noise). Measurement methods with high signal-to-noise ratios will produce more counts due to radon or WL exposure (signal) in proportion to the background counts (noise) than will methods with low signal-to-noise ratios. ...
출처: www.radon.com/pubs/homprot7.html
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| signal |
Any electronic visual, audible, or other indication used to convey information. In semiconductors, an electrical quantity (typically voltage, current, or light level) corresponding to some physical quantity. Signals are coded in frequency or amplitude to separate them from unwanted noise.
출처: www.x-emi.com/tech_terms.html
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| signal |
A varying electrical voltage that represents sound.
출처: www.ibanez-guitar-players.net/glossary.htm
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| signal averaging |
This is almost the same as an EKG except each beat is enlarged to look for "noise" after each beat. If there is "noise," the risk of abnormal hearts rhythms can be higher.
출처: www.indianaheartinstitute.com/terms.html
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| signal-to-noise ratio |
"Signal" refers to the useful or "pure" information found in a an audio stream or other medium, and "noise" to anything else. The ratio of these is usually expressed logarithmically, in decibels. Signal-to-Noise Ratio is sometimes abbreviated as SNR, s/n ratio and s:n ratio. A high SNR translates to a "cleaner" signal.
출처: www.sonicspot.com/guide/glossary.html
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