Look up: Signal-To-Noise-Ratio

1. 
   Signal to Noise Ratio
   The ratio of desired sound to undesired background noise.
   Found on http://www.dramatic.com.au/glossary/glos
   
   
2. 
   signal to noise ratio
   Abbreviated SNR. The ratio of wanted information (the signal) to unwanted information (noise) in a communications channel. SIR (signal to interference ratio) is more commonly used in mobile communications since it implies interference from other transmitters, which is endemic in spread-spectrum techniques like CDMA and common in other radio based systems like GSM. Both SIR and SNR are commonly expressed as a logarithmic ratio in dB (decibels).
   Found on http://www.flying-boat.co.uk/glossary/
   
   
3. 
   Signal to Noise Ratio
   The ratio between a recorded signal and spurious background noise. Background noise is most commonly present due to wires and instrumentation reacting to electro-magnetic emissions from surrounding electrical equipment e.g., are welders, vehicle ignition circuits, machine tools. The signal-to-noise ratio is the ratio between the coherent and the no...
   Found on http://www.diracdelta.co.uk/science/sour
   
   
4. 
   Signal to Noise Ratio
   This is the ratio of the desired signal to the unwanted noise in an audio or video record/playback system.
   Found on http://www.filmland.com/glossary/Diction
   
   
5. 
   signal-to-bias noise ratio
   the ratio, expressed in decibels, of the reference output level, to the specified weighted noise output level after erasure with reference bias applied NOTE - The frequency weighting employed should always be specified, but if no weighting is stated, the 'A' frequency weigthting should be understood.
   Found on http://www.electropedia.org/iev/iev.nsf/
   
   
6. 
   signal-to-noise ratio
   A quantitative measure of the statistical detectability of a signal, expressed as a ratio of the magnitude of the signal relative to the variability. For first detection of a CO2-induced climate change, the model signal is the mean change or anomaly in some climatic variable, usually surface air temperature, attributed by a numerical model to increased concentrations of carbon dioxide. Observed noise is the standard deviation or natural variability computed from observations of that variable and...
   Found on http://cdiac.ornl.gov/glossary.html
   
   
7. 
   signal-to-noise ratio
   [n] - the ratio of signal intensity to noise intensity
   Found on http://www.webdictionary.co.uk/definitio
   
   
8. 
   Signal-to-Noise Ratio
   The amount of dB lower the noise is as compared to the signal.
   Found on http://www.testing1212.co.uk/a.htm
   
   
9. 
   Signal-to-noise ratio
   the amount of useful information to be found in a given Usenet newsgroup - often used derogatorily, for example: 'the signal-to-noise ratio in this newsgroup is pretty low'
   Found on http://www.archivemag.co.uk/
   
   
10. 
    Signal-To-Noise-Ratio
    The ratio of signal to noise (measured in dB).
    Found on http://www.bownet.co.uk/acatalog/Glossar
    
    
11. 
    signal-to-noise ratio
    1. (communications) (SNR, 's/n ratio', 's:n ratio') 'Signal' refers to useful information conveyed by some communications medium, and 'noise' to anything else on that medium. The ratio of these is usually expressed logarithmically, in decibels. 2. (networking) The term is often applied to Usenet newsgroups though figures are never given. Here it ...
    Found on
    
    
12. 
    Signal-to-noise ratio
    The ratio of the usable signal to unusable noise in a scan. A high degree of noise can mask the shadow detail in an image regardless of tonal resolution.
    Found on http://www.rodsmith.org.uk/photographic%
    
    
13. 
    signal-to-noise ratio
    <microscopy> Also sometimes used as an abbreviation for serial number, can be somewhat confusing in the case of electronic equipment. ... (05 Aug 1998) ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
14. 
    signal-to-noise ratio
    signal-to-noise noun the ratio of signal intensity to noise intensity
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
15. 
    Signal-to-noise ratio
    `Signal-to-noise ratio` (often abbreviated `SNR` or `S/N`) is an electrical engineering concept, also used in other fields (such as scientific measurements, biological cell signaling and oral lore), defined as the ratio of a signal power to the noise power corrupting the signal. In less technical terms, signal-to-noise ratio compares the level of a desired signal (such as music) to the level of background noise. The higher the ratio, the less o...
    Found on http://en.wikipedia.org/wiki/Signal-to-n
    
    
16. 
    signal-to-noise ratio
    the ratio between the amplitude of a signal being measured and that of the noise.
    Found on http://www.mercksource.com/pp/us/cns/cns
    
    
17. 
    signal-to-noise ratio
    (from the article `information theory`) ...bits per second, where is the bandwidth of the channel, and the quantity is the signal-to-noise ratio, which is often given in decibels (dB). ... The range of a radio communications link is defined as the farthest distance that the receiver can be from the transmitter and still maintain a ......
    Found on http://www.britannica.com/eb/a-z/s/93
    
    
18. 
    Signal-to-noise ratio
    The ratio of the usable signal to unusable noise in a scan. A high degree of noise can mask the shadow detail in an image regardless of tonal resolution
    Found on http://www.digitalexposure.ca/sub1.html
    
    
19. 
    Signal-to-Noise Ratio
    A comparison of the signal level relative to the noise level. Larger numbers are better.
    Found on http://www.hometheatermag.com/glossary/
    
    
20. 
    signal-to-noise ratio
    the ratio of the wanted signal level to the electromagnetic noise level as measured under specified conditions
    Found on http://www.electropedia.org/iev/iev.nsf/
    
    
21. 
    signal-to-noise ratio
    in a stated bandwidth, the ratio of (1) the peak-to-peak signal current to (2) the r.m.s. noise in the output current
    Found on http://www.electropedia.org/iev/iev.nsf/
    
    
22. 
    signal-to-noise ratio
    the ratio, generally expressed in decibels, of the power of the wanted signal to that of the coexistent noise at a specified point in a transmission channel under specified conditions NOTE - The signal cannot generally be separated from noise, and in practice the ratio (signal + noise) to noise is measured.
    Found on http://www.electropedia.org/iev/iev.nsf/
    
    
23. 
    signal-to-noise ratio
    the ratio, generally expressed in decibels, of the power of the wanted signal to that of the coexistent noise at a specified point in a transmission channel, usually at the receiver output, under specified conditions NOTE 1 - The signal cannot generally be separated from noise, and in practice the ratio (signal+noise) to noise is measured. NOTE 2 -...
    Found on http://www.electropedia.org/iev/iev.nsf/
    
    
24. 
    signal-to-noise ratio
    (SNR) The ratio of the strength of a signal to the strength of any background noise that might also be present. The higher the SNR, the more easily the signal can be distinguished.
    Found on http://www.daviddarling.info/encyclopedi