The Allan variance (AVAR), also known as two-sample variance, is a measure of frequency stability in clocks, oscillators and amplifiers. It is named after...
64 KB (9,318 words) - 19:58, 20 April 2024
The modified Allan variance (MVAR), also known as mod σy2(τ), is a variable bandwidth modified variant of Allan variance, a measurement of frequency stability...
5 KB (587 words) - 21:18, 1 April 2024
Wayne Allan (born September 25, 1936) is an American atomic clock physicist and author of the Allan variance, also known as the two-sample variance, a measure...
6 KB (562 words) - 17:14, 4 September 2024
stability of Allan deviation. It is commonly defined from the modified Allan deviation, but other estimators may be used. Time variance (TVAR) also known...
2 KB (295 words) - 18:08, 23 June 2024
Department of Commerce. "Allan Variance -- Overview by David W. Allan". www.allanstime.com. Retrieved 2021-09-16. "Hadamard Variance". www.wriley.com. Retrieved...
7 KB (936 words) - 23:55, 23 June 2024
between ticks of the physical clock and ticks of an ideal clock. The Allan variance of the clock frequency is half the mean square of change in average...
53 KB (6,482 words) - 01:53, 5 June 2024
the reference ntpd and chrony, using samba for the domain connection. Allan variance – Measure of frequency stability in clocks and oscillators Clock network –...
57 KB (5,948 words) - 13:53, 1 September 2024
computer-generated imagery Avar(), symbol for asymptotic variance, in statistics Allan variance, a statistical measure of frequency stability Trade name...
2 KB (236 words) - 18:23, 5 August 2024
d'Horlogerie de Genève [de] (GPHG) Goldene Unruh [de] 24-hour analog dial Allan variance Allen-Bradley Clock Tower at Rockwell Automation Headquarters Building...
96 KB (11,230 words) - 01:55, 25 August 2024
frequency range by filters in the IF (intermediate frequency) amplifier. Allan variance Flicker noise Leeson's equation Maximum time interval error Noise spectral...
13 KB (1,470 words) - 02:20, 19 August 2023
and necessary result of modulation in both FM and phase modulation. Allan variance Clock drift Phase noise Automatic frequency control (AFC) Phase-locked...
3 KB (283 words) - 08:08, 12 May 2024
systems used in nuclear power generating stations. Data acquisition (DAQ) Allan variance Photomultiplier Positron emission tomography Class-D amplifier W. R...
9 KB (1,389 words) - 06:15, 20 August 2024
clock manufacturers List of watch manufacturers Winthrop Kellogg Edey Allan variance Clock drift International Earth Rotation and Reference Systems Service...
27 KB (3,238 words) - 21:23, 13 August 2024
the course of synchronisation, which optimises the method by itself. Allan variance Berkeley algorithm Clock synchronization Daytime Protocol, older time...
3 KB (345 words) - 20:53, 27 March 2023
stresses. The short-term stability is measured by four main parameters: Allan variance (the most common one specified in oscillator data sheets), phase noise...
89 KB (9,470 words) - 16:18, 27 August 2024
Frequency drift Frequency deviation Jitter Automatic frequency control Allan variance Rudolf Kingslake (2 December 2012). Applied Optics and Optical Engineering...
1 KB (119 words) - 19:29, 24 November 2017
Median (redirect from Variance of the median)
the minimum-variance mean (for large normal samples), which is to say the variance of the median will be ~50% greater than the variance of the mean....
61 KB (7,722 words) - 03:12, 4 September 2024
Algorithmic inference Algorithms for calculating variance All models are wrong All-pairs testing Allan variance Alignments of random points Almost surely Alpha...
87 KB (8,280 words) - 14:50, 5 July 2024
gives a chart useful for characterizing the stability of the clock. Allan variance Clock drift Instantaneous phase Jitter Phase noise Plesiochronous digital...
2 KB (221 words) - 06:32, 27 January 2022
(the time between successive measurements of the atomic system). The Allan variance for an oscillator with White frequency noise is given by σ y 2 ( τ )...
51 KB (6,985 words) - 00:14, 17 July 2024
350–1050 nm 60 μrad/pixel Cassini ISS RSE Radio Science Experiment Allan variance of radio oscillators: T = 100 s of 1×10−13 Transponders operating at...
17 KB (700 words) - 14:03, 25 April 2023
sensors used within the IMU. The sensor quality can be evaluated by Allan Variance technique. A precise IMU uses laser gyroscopes and precise accelerometers...
6 KB (765 words) - 08:22, 9 February 2023
Bias of an estimator (section Sample variance)
of transformations); for example, the sample variance is a biased estimator for the population variance. These are all illustrated below. An unbiased...
34 KB (5,360 words) - 19:12, 10 August 2024
premiere on 1 September 2022. National Geographic, in partnership with Variance Films, gave the film a limited theatrical release beginning in New York...
7 KB (465 words) - 12:12, 25 May 2024
Mendelian Inheritance (which was the first to use the statistical term, variance), his classic 1925 work Statistical Methods for Research Workers and his...
78 KB (8,770 words) - 10:56, 28 August 2024
estimate (MLE), the square root of the variance. There are several ways to consistently estimate the variance matrix which in finite samples leads to...
17 KB (2,232 words) - 23:13, 22 March 2024
Wolverine, Cassandra Nova is referred as an Omega-level mutant by the Time Variance Authority. These characters were once referred as Omega-level mutants or...
14 KB (1,283 words) - 13:01, 2 September 2024
Fazlelahi, Forough; Newman, Alexander; Lee, Allan; Obschonka, Martin (2020-09-01). "Addressing common method variance and endogeneity in vocational behavior...
8 KB (875 words) - 03:20, 31 July 2024
Kirrilee Berger, Jonathan Jackson, Candace Cameron Bure, Lucas Black Breathe Variance Films / Thunder Road Films Stefon Bristol (director); Doug Simon (screenplay);...
267 KB (9,551 words) - 01:08, 6 September 2024
How to Live Forever (category Variance Films films)
Cinematography Sarah Levy Allan Palmer Robin Probyn Edited by Robert DeMaio Music by Steven Thomas Cavit Distributed by Variance Films Release date October 2009 (2009-10)...
11 KB (1,510 words) - 01:14, 22 February 2024