thermal noise — šiluminis triukšmas statusas T sritis fizika atitikmenys: angl. Johnson noise; thermal agitation noise; thermal noise vok. thermisches Rauschen, n; Wärmegeräusch, n; Wärmerauschen, n rus. тепловой шум, m; шум теплового возбуждения, m pranc. bruit … Fizikos terminų žodynas
thermal noise — šiluminis triukšmas statusas T sritis automatika atitikmenys: angl. agitation noise; thermal noise vok. thermischer Rausch, m; Wärmegeräusch, n rus. тепловой шум, m pranc. bruit thermique, m … Automatikos terminų žodynas
thermal noise — šiluminis triukšmas statusas T sritis Standartizacija ir metrologija apibrėžtis Atsitiktiniai elektros srovės stiprio ar įtampos pokyčiai bei atsitiktinė elektromagnetinių bangų spinduliuotė dėl atsitiktinio krūvininkų judėjimo (jų greičio… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
thermal noise — noun : radio receiver or amplifier noise due to thermal agitation of the free electrons in the circuit and the tubes called also Johnson noise; compare shot effect … Useful english dictionary
thermal noise — Thermodynam., Elect. a wide spectrum of electromagnetic noise appearing in electronic circuits and devices as a result of the temperature dependent random motions of electrons and other charge carriers. Cf. shot effect. [1925 30] * * * … Universalium
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 (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 (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 (electronics) — Electronic noise [1] is a random fluctuation in an electrical signal, a characteristic of all electronic circuits. Noise generated by electronic devices varies greatly, as it can be produced by several different effects. Thermal noise is… … Wikipedia
Noise — This article is about noise as an unwanted phenomenon. For other uses, see Noise (disambiguation). NASA researchers at Glenn Research Center conducting tests on aircraft engine noise in 1967 In common use, the word noise means any unwanted … Wikipedia
Noise temperature — In electronics, noise temperature is one way of expressing the level of available noise power introduced by a component or source. The power spectral density of the noise is expressed in terms of the temperature (in kelvins) that would produce… … Wikipedia
