Post-Correction of ADC Non-Linearity Using Integral Non-Linearity Curve

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F13%3A00207967" target="_blank" >RIV/68407700:21230/13:00207967 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.computingonline.net" target="_blank" >http://www.computingonline.net</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Post-Correction of ADC Non-Linearity Using Integral Non-Linearity Curve

Popis výsledku v původním jazyce

The accuracy of AD conversion can be improved using the post-correction of digitizer non-linearity. In principle two methods could be applied ? look-up table or an analytical inverse function of integral non-linearity curve (INL(n)). Look-up table can beeasily implemented but it demands huge memory space particularly for high resolution ADCs. Inverse function offers flexible solution for parameterization (e.g. frequency dependence) but it also requires fast DSP for real-time correction. The data or coefficients for both methods are frequently determined from a histogram of acquired pure sinusoidal signal. Non-linearity curve can also be gained by another procedure demanding significantly less samples ? approximation from a frequency spectrum. The correction of ADC nonlinearity by means of inverse function of INL(n) curve is analyzed in this paper and the results are presented.

Název v anglickém jazyce

Post-Correction of ADC Non-Linearity Using Integral Non-Linearity Curve

Popis výsledku anglicky

The accuracy of AD conversion can be improved using the post-correction of digitizer non-linearity. In principle two methods could be applied ? look-up table or an analytical inverse function of integral non-linearity curve (INL(n)). Look-up table can beeasily implemented but it demands huge memory space particularly for high resolution ADCs. Inverse function offers flexible solution for parameterization (e.g. frequency dependence) but it also requires fast DSP for real-time correction. The data or coefficients for both methods are frequently determined from a histogram of acquired pure sinusoidal signal. Non-linearity curve can also be gained by another procedure demanding significantly less samples ? approximation from a frequency spectrum. The correction of ADC nonlinearity by means of inverse function of INL(n) curve is analyzed in this paper and the results are presented.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

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

2013

Kód důvěrnosti údajů

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

Název periodika

International Journal of Computing

ISSN

1727-6209

e-ISSN

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Svazek periodika

12

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

UA - Ukrajina

Počet stran výsledku

7

Strana od-do

56-62

Kód UT WoS článku

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EID výsledku v databázi Scopus

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