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Noise measurement

About: Noise measurement is a research topic. Over the lifetime, 19776 publications have been published within this topic receiving 308180 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the phase noise of six different types of singlemode diode laser in an unbalanced Michelson interferometer was measured as a function of optical path difference.
Abstract: Measurements have been made of the phase noise of six different types of single‐mode diode laser in an unbalanced Michelson interferometer, as a function of optical path difference. The frequency dependence of the phase noise has also been determined. Possible origins of the frequency fluctuations which result in the phase noise are discussed. The detrimental effect of the phase noise on the sensitivity and dynamic range of optical fiber interferometer sensors is briefly discussed.

104 citations

Journal ArticleDOI
J. Miller1, J. Thomas
TL;DR: Optimal nonlinear detector structures for known discretetime signals in such noise are derived and their large-sample performance compared to that of a linear detector is studied using asymptotic relative efficiency.
Abstract: A first-order mixture noise density is considered as a model for impulsive noise channels It consists of a mixture of a small variance, probably Gaussian, background noise pdf and a large variance impulsive pdf Optimal nonlinear detector structures for known discretetime signals in such noise are derived Their large-sample performance compared to that of a linear detector is studied using asymptotic relative efficiency

104 citations

Proceedings ArticleDOI
01 Jan 2006
TL;DR: It is demonstrated that synchronizing the noise can significantly reduce its negative influence, and on extreme-scale platforms, the performance is correlated with the largest interruption to the application, even if the probability of such an interruption is extremely small.
Abstract: We investigate operating system noise, which we identify as one of the main reasons for a lack of synchronicity in parallel applications. Using a microbenchmark, we measure the noise on several contemporary platforms and find that, even with a general - purpose operating system, noise can be limited if certain precautions are taken. We then inject artificially generated noise into a massively parallel system and measure its influence on the performance of collective operations. Our experiments indicate that on extreme - scale platforms, the performance is correlated with the largest interruption to the application, even if the probability of such an interruption is extremely small. We demonstrate that synchronizing the noise can significantly reduce its negative influence.

104 citations

Journal ArticleDOI
TL;DR: This paper addresses the problem of investigating the limits of the linearized approach and applies it to the computation of the jitter transfer and the jitters depending on the level of noise at the binary phase detector input, and compares to phase noise measurements obtained from a digital bang-bang PLL implemented in 130-nm CMOS technology.
Abstract: In the last few years, several digital implementations of phase-locked loops (PLLs) have emerged, in some cases outperforming analog ones. Some of these PLLs use a bang-bang phase detector to convert the phase error into a digital value. Unfortunately, that introduces a hard nonlinearity in the loop which prevents the use of the traditional linear analysis. Nevertheless, authors resort to linearized models for the noise analysis of this kind of loops, but to the author's knowledge, no attempt has been made to evaluate the limits of this approach. In this paper, we address the problem of investigating the limits of the linearized approach, and we apply it to the computation of the jitter transfer and the jitter generation depending on the level of noise at the binary phase detector input. The results will be compared to phase noise measurements obtained from a digital bang-bang PLL implemented in 130-nm CMOS technology.

103 citations

Journal ArticleDOI
TL;DR: In this paper, the impulse noise damage risk criteria based on conclusions of independent British and American studies and on the work of other research workers in this field are presented, and the variables that must be considered in determining the potential hearing hazard and in the practical application of the criteria are presented.
Abstract: This paper presents impulse‐noise damage‐risk criteria based on conclusions of independent British and American studies and on the work of other research workers in this field. Most of the studies that led to this criterion were performed with noise from small arms, but the criterion is general enough to permit assessment of most other types of impulse noise. The variables that must be considered in determining the potential hearing hazard and in the practical application of the criteria are presented, and the parameters that must be measured are defined. The measurement technique and type of transducers to be used are discussed.

103 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202377
2022162
2021495
2020525
2019489
2018755