signal-to-noise ratio


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sig·nal-to-noise ratio

(sĭg′nəl-tə-noiz′)
n.
1. The ratio of the power of an electrical, electromagnetic, or optical signal to the power of background noise accompanying the signal.
2. The ease with which useful information can be discerned in the context of much noise, talk, or undesired information.

signal-to-noise ratio

n
(Electronics) the ratio of one parameter, such as power of a wanted signal to the same parameter of the noise at a specified point in an electronic circuit, etc

signal-to-noise ratio

The ratio of the amplitude of the desired signal to the amplitude of noise signals at a given point in time.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.signal-to-noise ratio - the ratio of signal intensity to noise intensitysignal-to-noise ratio - the ratio of signal intensity to noise intensity
ratio - the relative magnitudes of two quantities (usually expressed as a quotient)
References in periodicals archive ?
In order to assess the performance of the proposed algorithms, we measured both the segmental signal-to-noise ratio of the outputs and the Itakura-Saito distance.
Signal amplification inevitably decreases the signal-to-noise ratio. In fact, the more gain an amplifier provides, or, in our case, the greater the signal loss it needs to compensate, the higher the level of noise it produces.
The signal-to-noise ratio is the ratio of the power spectrum of the signal to the noise, but power spectra are usually hard to measure.
On its own, this would not be particularly useful, but in conjunction with the improved signal-to-noise ratios at low energies, the result is lower detection limits for target compounds.
This enhanced signal-to-noise ratio, LaConte added, carries implications for brain rehabilitation.
The lower the signal-to-noise ratio, the harder it is for the receiver to pull out enough noise.
The signal-to-noise ratio (SNR) can be expressed as a function of OSNR as follows [11, 12]:
There are established the main noise characteristics of the device and the way of choosing its geometry and material features, which allow the obtaining of high values of signal-to-noise ratio and a high magnetic induction resolution.
* A SNR (signal-to-noise ratio) performance of 76.4 dBFS.
The analyzer includes full spectrum and packet analysis for the IEEE 802.11n draft standard and signal-to-noise ratio measurements.
They describe CCD and CMOS fundamentals; introduce array parameter issues such as well capacity, dark pixels, microlenses, and color filter arrays; explore the topics of quantum efficiency, responsivity, and noise sources; examine signal-to-noise ratio in terms of both radiometric units for scientific applications and photometric units for consumer applications; discuss image quality and its links to the system modulation transfer function and linear system theory; and describe different mathematical approaches to image quality.
It also offers progressive scan, backlight compensation, gamma correction, a signal-to-noise ratio of 48 dB, and a slow shutter speed.