Noise properties of Hilbert transform evaluation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00455229" target="_blank" >RIV/68378271:_____/15:00455229 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0957-0233/26/8/085207" target="_blank" >http://dx.doi.org/10.1088/0957-0233/26/8/085207</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0957-0233/26/8/085207" target="_blank" >10.1088/0957-0233/26/8/085207</a>

Result language

angličtina

Original language name

Noise properties of Hilbert transform evaluation

Original language description

The Hilbert transform is a standard method for the calculation of the envelope and phase of a modulated signal in optical measurement methods. Usually, the intensity of light is converted into an electric signal at a detector. Therefore the actual spatially or temporally sampled signal is always affected by noise. Because the noise values of individual samples are independent, the noise can be considered as white. If the envelope and phase are calculated from the noised signal, they will also be affected by the noise. We calculate the variance and spectral density of both the envelope noise and the phase noise. We determine which parameters influence the variance and spectral density of both the envelope noise and the phase noise. Finally, we determinethe influence of the noise on the measurement uncertainty in white-light interferometry and fringe-pattern analysis.n

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

<a href="/en/project/GA13-12301S" target="_blank" >GA13-12301S: Optical 3D sensors with high information efficiency</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Measurement Science and Technology

ISSN

0957-0233

e-ISSN

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Volume of the periodical

26

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

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UT code for WoS article

000362220900043

EID of the result in the Scopus database

2-s2.0-84940121910