Johnson–Nyquist noise (thermal noise, Johnson noise, or Nyquist noise) is the voltage or current noise generated by the thermal agitation of the charge...
33 KB (3,810 words) - 20:53, 4 June 2025
at Bell Laboratories, Nyquist did important work on thermal noise ("Johnson–Nyquist noise"), the stability of feedback amplifiers, telegraphy, facsimile...
9 KB (862 words) - 10:00, 4 September 2024
random interference with information traveling on wires, now called Johnson–Nyquist noise. Johan Erik Bertrand was born in Gothenburg, Sweden on October 2...
8 KB (845 words) - 22:12, 31 May 2025
noise coming from many natural sources, such as the thermal vibrations of atoms in conductors (referred to as thermal noise or Johnson–Nyquist noise)...
4 KB (409 words) - 11:43, 5 June 2025
Johnson–Nyquist noise, thermal noise Nyquist stability criterion, in control theory Nyquist plot, signal processing and electronic feedback Nyquist–Shannon...
793 bytes (118 words) - 06:53, 18 March 2020
phonon noise can significantly contribute to the total noise. Although Johnson–Nyquist noise shares many similarities with phonon noise (e.g. the noise spectral...
4 KB (543 words) - 22:37, 6 August 2022
technique for measuring the gain and noise temperature of an amplifier. It is based on the Johnson–Nyquist noise of a resistor at two different, known...
2 KB (272 words) - 11:40, 29 June 2024
noise comes from many natural noise sources, such as the thermal vibrations of atoms in conductors (referred to as thermal noise or Johnson–Nyquist noise)...
15 KB (2,962 words) - 11:59, 26 October 2023
Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition...
10 KB (1,335 words) - 15:57, 16 February 2025
shot noise is often less significant as compared with two other noise sources in electronic circuits, flicker noise and Johnson–Nyquist noise. However...
20 KB (2,957 words) - 04:09, 15 May 2025
Intermodulation noise Internet background noise ITU-R 468 noise weighting Jansky noise Johnson–Nyquist noise, Johnson noise Line noise Mode partition noise Neuronal...
4 KB (342 words) - 12:14, 30 October 2023
antenna and is reradiated into the cavity. The resistor also produces Johnson–Nyquist noise current due to the random motion of its molecules at the temperature...
21 KB (2,488 words) - 17:31, 29 March 2025
"mosquito noise" around edges in JPEG and other formats Noise (electronics) in electrical signals Johnson–Nyquist noise, in semiconductors Quantum noise Quantum...
7 KB (935 words) - 15:35, 30 May 2025
Transimpedance amplifier (section Noise considerations)
is directly the voltage noise over the feedback resistance. This Johnson–Nyquist noise has an RMS amplitude v n , o u t 2 ¯ = 4 k B T R f Δ f . {\displaystyle...
12 KB (1,824 words) - 06:19, 23 May 2025
spectral density of the noise is expressed in terms of the temperature (in kelvins) that would produce that level of Johnson–Nyquist noise, thus: P N B = k B...
10 KB (1,719 words) - 01:21, 5 April 2024
Soundproofing (category Noise reduction)
absorption, or using active anti-noise sound generators. Acoustic quieting and noise control can be used to limit unwanted noise. Soundproofing can reduce the...
22 KB (2,523 words) - 19:02, 19 May 2025
electromagnetic field fluctuations, (blackbody radiation in free space, Johnson–Nyquist noise in wires) Mathematically an asymptotic analysis is performed when...
6 KB (749 words) - 17:09, 5 April 2025
Colors of noise Crest factor Fractal Flicker noise Johnson–Nyquist noise Noise (electronics) Quantum 1/f noise Self-organised criticality Shot noise Sound...
55 KB (6,607 words) - 18:52, 23 May 2025
such as conductance fluctuations, including 1/f noise. Johnson–Nyquist noise (more often thermal noise) is unavoidable, and generated by the random thermal...
17 KB (2,201 words) - 20:04, 2 March 2025
response variability exist for neurons and neural networks: Thermal noise: Johnson–Nyquist noise occurs due to the thermal motions of ions and other charge carriers...
18 KB (2,370 words) - 00:01, 27 April 2024
Joule heating (section Power loss and noise)
Resistors create electrical noise, called Johnson–Nyquist noise. There is an intimate relationship between Johnson–Nyquist noise and Joule heating, explained...
33 KB (3,848 words) - 21:14, 29 May 2025
Kelvin (section Kelvin as a unit of noise temperature)
to an ultimate noise floor, i.e. the noise temperature. The Johnson–Nyquist noise of resistors (which produces an associated kTC noise when combined with...
45 KB (4,920 words) - 02:24, 15 May 2025
Noise health effects are the physical and psychological health consequences of regular exposure to consistent elevated sound levels. Noise from traffic...
42 KB (4,696 words) - 13:54, 24 February 2025
Sources of noise vary and include: Johnson–Nyquist noise ("thermal noise"); Zener noise; avalanche breakdown. The drawbacks of using noise sources for...
28 KB (3,296 words) - 06:33, 1 June 2025
The Shockley equation doesn't model noise (such as Johnson–Nyquist noise from the internal resistance, or shot noise). The Shockley equation is a constant...
12 KB (1,866 words) - 09:49, 24 April 2025
Noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is the study and modification of the noise and vibration characteristics...
9 KB (1,190 words) - 00:27, 26 October 2023
Brownian motion during his annus mirabilis and Harry Nyquist's explanation in 1928 of Johnson noise in electrical resistors. The fluctuation–dissipation...
29 KB (4,352 words) - 09:47, 8 March 2025
contribute a portion of the 288 K Earth noise to its overall noise temperature. Noise Temperature Johnson–Nyquist noise Federal Standard 1037C MIL-STD-188...
4 KB (568 words) - 15:21, 14 May 2025
States Noise Control Act of 1972, other local and state governments passed further regulations. A noise regulation restricts the amount of noise, the duration...
65 KB (9,394 words) - 14:35, 26 May 2025
primarily by Johnson–Nyquist noise (thermal noise), including that which comes from the reset noise of capacitors ("kTC noise"). Amplifier noise is a major...
29 KB (3,599 words) - 23:03, 9 May 2025