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Statements

Subject Item
n2:RIV%2F68407700%3A21230%2F13%3A00207967%21RIV14-MSM-21230___
rdf:type
skos:Concept n9:Vysledek
rdfs:seeAlso
http://www.computingonline.net
dcterms:description
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 be easily 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. 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 be easily 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.
dcterms:title
Post-Correction of ADC Non-Linearity Using Integral Non-Linearity Curve Post-Correction of ADC Non-Linearity Using Integral Non-Linearity Curve
skos:prefLabel
Post-Correction of ADC Non-Linearity Using Integral Non-Linearity Curve Post-Correction of ADC Non-Linearity Using Integral Non-Linearity Curve
skos:notation
RIV/68407700:21230/13:00207967!RIV14-MSM-21230___
n9:predkladatel
n18:orjk%3A21230
n3:aktivita
n17:Z
n3:aktivity
Z(MSM6840770015)
n3:cisloPeriodika
1
n3:dodaniDat
n13:2014
n3:domaciTvurceVysledku
n10:4438809 n10:7100493 n10:8160015
n3:druhVysledku
n20:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
97688
n3:idVysledku
RIV/68407700:21230/13:00207967
n3:jazykVysledku
n5:eng
n3:klicovaSlova
analog-to-digital converter; ADC non-linearity; INL; transfer function; approximation; non-linearity correction; simulations; experimental verification
n3:klicoveSlovo
n8:experimental%20verification n8:non-linearity%20correction n8:analog-to-digital%20converter n8:simulations n8:INL n8:ADC%20non-linearity n8:approximation n8:transfer%20function
n3:kodStatuVydavatele
UA - Ukrajina
n3:kontrolniKodProRIV
[F0DD4F96C586]
n3:nazevZdroje
International Journal of Computing
n3:obor
n19:JB
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n13:2013
n3:svazekPeriodika
12
n3:tvurceVysledku
Haasz, Vladimír Slepička, David Suchánek, Petr
n3:zamer
n16:MSM6840770015
s:issn
1727-6209
s:numberOfPages
7
n14:organizacniJednotka
21230