Extracting full information from measured adc data

László Balogh, István Kollár, Linus Michaeli, Ján Šaliga, Jozef Lipták

Research output: Conference contribution

1 Citation (Scopus)

Abstract

ADC testing is often done using sine wave excitation (see e.g. IEEE standard 1241). The measured data are fitted in least squares sense by a sine wave, and the residuals can be analyzed further. In recent papers, it has been recognized that even more (and more precise) information can be extracted by the solution of the maximum likelihood equations. This can be considered as an improvement to the three-parameter and four-parameter fits. Further investigations lead to the statement that the same principle can be extended to any measurement which uses an excitation signal which can be described with a few parameters. A candidate for this is using an exponential signal, with 3 parameters: start value, end (steady-state) value, and time constant. The maximum likelihood (ML) equations yield a solution for these more accurate than least squares (LS) fitting.

Original languageEnglish
Title of host publication17th Symposium IMEKO TC4 - Measurement of Electrical Quantities, 15th International Workshop on ADC Modelling and Testing, and 3rd Symposium IMEKO TC19 - Environmental Measurements
Pages630-635
Number of pages6
Publication statusPublished - dec. 1 2010
Event17th Symposium IMEKO TC4 - Measurement of Electrical Quantities, 15th International Workshop on ADC Modelling and Testing, and 3rd Symposium IMEKO TC19 - Environmental Measurements - Kosice, Slovakia
Duration: szept. 8 2010szept. 10 2010

Publication series

Name17th Symposium IMEKO TC4 - Measurement of Electrical Quantities, 15th International Workshop on ADC Modelling and Testing, and 3rd Symposium IMEKO TC19 - Environmental Measurements

Other

Other17th Symposium IMEKO TC4 - Measurement of Electrical Quantities, 15th International Workshop on ADC Modelling and Testing, and 3rd Symposium IMEKO TC19 - Environmental Measurements
CountrySlovakia
CityKosice
Period9/8/109/10/10

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Modelling and Simulation

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  • Cite this

    Balogh, L., Kollár, I., Michaeli, L., Šaliga, J., & Lipták, J. (2010). Extracting full information from measured adc data. In 17th Symposium IMEKO TC4 - Measurement of Electrical Quantities, 15th International Workshop on ADC Modelling and Testing, and 3rd Symposium IMEKO TC19 - Environmental Measurements (pp. 630-635). (17th Symposium IMEKO TC4 - Measurement of Electrical Quantities, 15th International Workshop on ADC Modelling and Testing, and 3rd Symposium IMEKO TC19 - Environmental Measurements).