Measurement of RMS Values of Non-coherently Sampled Signals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F04%3A03100012" target="_blank" >RIV/68407700:21230/04:03100012 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Measurement of RMS Values of Non-coherently Sampled Signals

Original language description

If the RMS value is gained by digital processing of sequence of signal samples, both uncertainty and bias of the measured value depend on the algorithm used. Since in practice signal sampling is usually non-coherent, leakage occurs in signal DFT spectrumand definition of the RMS of periodic signals in time domain is violated. The paper compares three different DSP algorithms of RMS measurement by non-coherent sampling from the point of view of measurement bias and uncertainty for different algorithms and various leakage levels, ADC resolution, additive noise and data window used. Results of simulations and some measurements are evaluated both for monofrequency and multifrequency signals, and a new method of automatic RMS value bias correction will bepresented. Processing of digitized signal samples in time domain with two methods of signal processing in frequency domain are compared for the case of pure sinusoidal signals, and sinusoidal signal with additive noise.

Czech name

Není k dispozici

Czech description

Není k dispozici

Type

A - Audiovisual production

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2004

Confidentiality

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

ISBN

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Place of publication

Athens

Publisher/client name

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Version

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Carrier ID

neuvedeno