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signal-to-noise ratio

An MRI term for the ratio between the amplitude of the received signal and background noise, which may obscure that signal. SNR, and by extension, image quality, can be improved by increasing the number of excitations, field of view, slice thickness, etc., while factoring the electrical properties of the patient being studied and type of receiving coil used.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
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Assume that digital signals [Y.sup.'.sub.ri] (t) is transmitted to the destination with power [P.sub.ri], neglecting the channel fading of relay-to-destination link, the received digital signals [Y.sub.di] (t) in the destination and its SNR are
After Ms Rhodes was fired by Barton snr for not fulfilling his instructions, she contacted Social Services, and later supported the Willey family against Barton's bogus civil claim.
However, she said Barton snr became very angry and said if she did, he would "wash his hands of her" and leave her at the mercy of her relatives, who would declare her mentally incompetent or even poison her.
The auto-optimal algorithm of identifying VSS has been used to evaluate the separation of HSS from the original signal that consists of contaminated LSS and HSS based on SNR, as well as the performance of ANC and NLMS algorithm combination.
Consequently, it is more desirable to develop a SNR estimation scheme in which the noise variation is tracked symbol-by-symbol instead of at the beginning of frame using a preamble symbol.
It can be seen from Figure 12 that, under SNR = -10 conditions, the sensing performance of K-means clustering algorithm is better than K-medoids clustering algorithm.
In [6, 7], the authors provide simulations for a relaying system that allows R to toggle between FDF, AF, and no-send protocols by comparing either the measured SNR or the calculated LLR of the received signal at R with predefined thresholds.
The output SNR at the M[D.sub.j] can then be calculated as