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power signal-to-noise ratio

См. также в других словарях:

  • Signal-to-noise ratio — For signal to noise ratio in statistics, see Cohen s d. Signal to noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined… …   Wikipedia

  • Peak signal-to-noise ratio — The phrase peak signal to noise ratio, often abbreviated PSNR, is an engineering term for the ratio between the maximum possible power of a signal and the power of corrupting noise that affects the fidelity of its representation. Because many… …   Wikipedia

  • signal-to-noise ratio — The ratio, at a selected point in the circuit, of signal power to noise power. It measures the comprehensibility of a data source or transmission link, usually expressed as the root mean square signal amplitude divided by the root mean square… …   Aviation dictionary

  • signal-to-noise ratio —    (S/N)    Relative power of the signal compared to the noise in a channel measured at a given time; usually expressed in decibels …   IT glossary of terms, acronyms and abbreviations

  • Signal-to-interference ratio — The signal to interference ratio (S/I or SIR), also known as the carrier to interference ratio ( C/I , CIR), is the quotient between the average received modulated carrier power S or C and the average received co channel interference power I ,… …   Wikipedia

  • signal-to-noise — noun a) The ratio comparing signal power to noise power. b) The quantity of quality information compared to irrelevant or incorrect information. Syn …   Wiktionary

  • Carrier-to-noise ratio — In telecommunications, the carrier to noise ratio, often written CNR or C/N , is the signal to noise ratio (SNR) of a modulated signal. The CNR is the quotient between the average received modulated carrier power C and the average received noise… …   Wikipedia

  • Contrast-to-noise ratio — Haze over Kuala Lumpur. Contrast to noise ratio (CNR) is a measure used to determine image quality. CNR is similar to the metric, signal to noise ratio (SNR), but subtracts off a term before taking the ratio. This is important when there is a… …   Wikipedia

  • Noise figure — (NF) is a measure of degradation of the signal to noise ratio (SNR), caused by components in a radio frequency (RF) signal chain. The noise figure is defined as the ratio of the output noise power of a device to the portion thereof attributable… …   Wikipedia

  • Noise shaping — is a technique typically used in digital audio, image, and video processing, usually in combination with dithering, as part of the process of quantization or bit depth reduction of a digital signal. Its purpose is to increase the apparent signal… …   Wikipedia

  • Noise (audio) — Noise in audio, recording, and broadcast systems refers to the residual low level sound (usually hiss and hum) that is heard in quiet periods of a programme. In audio engineering, it can refer either to the acoustic noise from loudspeakers, or to …   Wikipedia

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