johnson noise
1Johnson noise — ☆ Johnson noise n. 〚after J. B. Johnson, 20th c. U.S. physicist〛 thermal background noise in a radio receiver * * * …
2Johnson noise — ☆ Johnson noise n. [after J. B. Johnson, 20th c. U.S. physicist] thermal background noise in a radio receiver …
3Johnson 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 …
4johnson noise — noun Usage: usually capitalized J Etymology: after John B. Johnson b1887 American physicist : thermal noise …
5Johnson noise — noun see thermal noise …
6Johnson–Nyquist noise — (thermal noise, Johnson noise, or Nyquist noise) is the electronic noise generated by the thermal agitation of the charge carriers (usually the electrons) inside an electrical conductor at equilibrium, which happens regardless of any applied… …
7Noise equivalent temperature difference — (NETD) is a measure of the sensitivity of a detector of thermal radiation in the infrared, terahertz radiation or microwave radiation parts of the electromagnetic spectrum. It is the scene temperature difference equal to either the internal noise …
8Noise-equivalent temperature — (NET) is a measure of the sensitivity of a detector of thermal radiation in the infrared, terahertz or microwave portions of the electromagnetic spectrum. It is the amount of incident signal temperature that would be needed to match the internal… …
9Noise — 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 …
10Noise 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… …
