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SUMMARY:Direct Digitisation for the Power and Amplitude Measurement of Bro
 adband pulses: Sampling and Quantisation Effects on Resolution
DTSTART:20211008T130000Z
DTEND:20211008T143000Z
DTSTAMP:20260417T161100Z
UID:indico-event-1080072@indico.cern.ch
DESCRIPTION:Abstract:\n\nWith the technology improvements of Analog-to-Dig
 ital Converters (ADC)\, direct digitisation is becoming more and more a vi
 able and appealing option for the measurement of the power or the amplitud
 e of a broadband pulse signal.\n\nThe selection of a state-of-the-art ADC 
 imposes a trade-off between sampling frequency and resolution\, and the sa
 mpling rate required by the Nyquist-Shannon sampling theorem might be not 
 achievable or not optimal for the overall performance.\n\nIn this talk\, t
 he effects of the distortion due to the sampling process\, and of the fin
 ite resolution of the ADC\, are discussed analytically and numerically in 
 detail for any pulse waveform as function of the characteristics of ADC.\n
 \nAs an example\, the case study of the LHC beam extraction interlock Beam
  Position Monitor prototype system will be shown and the results compared 
 with actual measurements.\n\nThe analytic model of the effects of digitisa
 tion proves to be a valid tool to understand and quantify how the sampling
  stage limits the measurement resolution and how the choice of the ADC can
  be optimised.\n\nhttps://indico.cern.ch/event/1080072/
URL:https://indico.cern.ch/event/1080072/
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