noise figure
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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 figure — triukšmo faktorius statusas T sritis Standartizacija ir metrologija apibrėžtis Dydis, lygus stiprintuvo ar kitokio radioelektroninio įtaiso išėjimo triukšmo visuminės galios ir jos dalies, kurią sukuria signalo šaltinio triukšmas, dalmeniui.… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
noise figure — triukšmo faktorius statusas T sritis fizika atitikmenys: angl. noise factor; noise figure vok. Geräuschverhältnis, n; Rauchfaktor, m rus. коэффициент шума, m; шумфактор, m pranc. facteur de bruit, m … Fizikos terminų žodynas
Noise-figure meter — A noise figure meter is an instrument for measuring the noise figure of an amplifier, mixer, or similar device. An example instrument is the 1983 era Agilent 8970A. Contents 1 Measurement methods 2 Noise source 2.1 Thermal noise … Wikipedia
noise figure — noun see noise factor … Useful english dictionary
Noise Figure — Die Rauschzahl, manchmal auch Rauschfaktor genannt, ist in der Nachrichtentechnik eine Kennzahl bezüglich des Rauschens eines Vierpols. Ein Vierpol, auch als Zweitor bezeichnet, kann in diesem Zusammenhang beispielsweise eine Verstärkerstufe… … Deutsch Wikipedia
Noise (disambiguation) — Noise is unwanted sound or signal. Noise may also refer different types of interference such as: Noise (audio), residual low level hiss or hum Noise (video), snow on video or television pictures Image noise, related to digital photography Noise… … 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
Noise measurement — is carried out in various fields. In acoustics, it can be for the purpose of measuring environmental noise, or part of a test procedure using white noise, or some other specialised form of test signal. In electronics it relates to the sensitivity … Wikipedia
Figure — may refer to:*A shape, drawing, or representation *Figure 8 *A person s figure *Miniature representation of something **Action figure, in arts *a number *a type of person, as in Christ figureWriting *a figure in writing is a type of floating… … Wikipedia
