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%3A03099817" target="_blank" >RIV/68407700:21230/04:03099817 - 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

Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
13th International Symposium on Measurements for Research and Industry Applications
ISBN
960-254-643-3
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
230-235
Publisher name
IMEKO TC-4
Place of publication
Athens
Event location
Athens
Event date
Sep 29, 2004
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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