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signal-to-noise ratio |
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signal-to-noise ratio (SNR), the number used to describe the relative contributions to a detected signal of the true signal and random superimposed signals or "noise." signal-to-noise ratio the ratio of a specific response, e.g. counts per minutes (cpm) from a radiolabeled substance, to the background cpm; the latter is substracted from the former to give the value of the specific response. signal-to-noise ratio MRI The ratio obtained from the relative contributions of detected true signal to that of random superimposed signals–'noise'. See Magnetic resonance imaging. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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