The Interesting Effect of Non-uniform Sampling

Adam Derkowski
Abstract:
It is well known, that the proper ratio between frequencies of testing signal and sampling signal is required, during a dynamic testing of waveform recorders or analog-to-digital converters. A lot of testing methods suggest applying a coherent sampling, which assures a uniform distribution of samples between 0 and 2π. The paper presents results obtained with Matlab numerical simulations showing influence of the sampling strategy on establishing performances of analog-to-digital converters. It was shown, that the results of tested conversions are different if a non-coherent sampling is applied. A proposal of sampling is presented in case of using a sinewave as an exciting, input signal.
Download:
IMEKO-TC4-2005-113.pdf
DOI:
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Event details
IMEKO TC:
TC4
Event name:
TC4 Workshop 2005
Title:

10th IMEKO TC4 International Workshop on ADC Modelling and Testing - IWADC (together with XIVth IMEKO TC4 International Symposium on New Technologies in Measurement and Instrumentation)

Place:
Gdynia/Jurata, POLAND
Time:
12 September 2005 - 15 September 2005