Waveform acquisition with resolutions exceeding those of the ADCs employed

YIN, He, MANI, Mohammad, SONBUL, Omar and KALASHNIKOV, Alexander (2014). Waveform acquisition with resolutions exceeding those of the ADCs employed. In: HAASZ, Vladimir and MADANI, Kurosh, (eds.) Advanced Data Acquisition and Intelligent Data Processing : Applications In Monitoring, Measuring and Diagnostics Systems. The River Publishers Series in Information Science and Technology . River Publishers, 6-30.

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This chapter discusses various software/firmware and hardware methods and architectures to improve the fidelity of the acquired waveforms beyond the vertical and horizontal resolutions that are possible with the ADC employed. The applicability of these approaches, and the limits on the enhancements that are achievable, depend upon the nature of the acquired waveform, and they are presented separately for one-shot, repeatable and repetitive waveforms. The possibilities of combining applicable methods in order to simultaneously increase both resolutions are also discussed. The consideration is illustrated by the simulation results and the acquired experimental waveforms relevant to the ultrasonic non-destructive evaluation.

Item Type: Book Section
Uncontrolled Keywords: waveform acquisition, vertical resolution, horizontal resolution, analog-to-digital converter (ADC), time-interleaved ADC, averaging, boxcar averaging, synchronous digital averaging, on-the-fly averaging architecture, oversampling, equivalent time sampling, random interleaved sampling, accurate interleaved sampling (AIS), one shot waveform, repetitive waveform, repeatable waveform, dither, two clock AIS architecture, time delayed AIS architecture
Research Institute, Centre or Group: Materials and Engineering Research Institute > Engineering Research
Depositing User: Alexander Kalashnikov
Date Deposited: 19 Aug 2016 12:37
Last Modified: 19 Oct 2016 23:43
URI: http://shura.shu.ac.uk/id/eprint/13285

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