Easy Estimation of Spectral Purity of Test Signals for ADC Testing

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Easy Estimation of Spectral Purity of Test Signals for ADC Testing

Popis výsledku v původním jazyce

ADC testing frequently confronts the problem of spectral purity of harmonic test signal. The majority of dynamic ADC test methods require test signal distortion at least 10 dB less than that of the tested ADC - the condition that cannot be practically fulfilled for testing up-to-date ADCs. More sophisticated approach to ADC testing applies the correction for test signal imperfections. In both cases test signal distortion has to be known - roughly in the first case and quite accurately in the second case. In this paper an easy method for the testing of signal spectral purity is proposed. Test signal passed by one of two simple analog filters is measured by a common ADC, whose nonlinearity is mathematically post-corrected. The results are compared with common approach applying notch filter and uncertainty analysis is performed.

Název v anglickém jazyce

Easy Estimation of Spectral Purity of Test Signals for ADC Testing

Popis výsledku anglicky

ADC testing frequently confronts the problem of spectral purity of harmonic test signal. The majority of dynamic ADC test methods require test signal distortion at least 10 dB less than that of the tested ADC - the condition that cannot be practically fulfilled for testing up-to-date ADCs. More sophisticated approach to ADC testing applies the correction for test signal imperfections. In both cases test signal distortion has to be known - roughly in the first case and quite accurately in the second case. In this paper an easy method for the testing of signal spectral purity is proposed. Test signal passed by one of two simple analog filters is measured by a common ADC, whose nonlinearity is mathematically post-corrected. The results are compared with common approach applying notch filter and uncertainty analysis is performed.

Druh

D - Stať ve sborníku

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

13th Workshop on ADC Modelling and Testing

ISBN

978-88-903149-3-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

University of Florence

Místo vydání

Florence

Místo konání akce

Florence

Datum konání akce

22. 9. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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