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Windows for ADC dynamic testing via frequency-domain analysis

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3 Author(s)
P. Carbone ; Dipt. di Ingegneria Elettronica a dell'Inf., Perugia Univ., Italy ; E. Nunzi ; D. Petri

In this paper, the frequency-domain dynamic test of analog-to-digital converters (ADCs) is considered under the assumption of noncoherent sinewave sampling. A procedure is described which is based on the windowed discrete Fourier transform (WDFT), optimized for the achievement of high estimation accuracy. With this aim, the class of windows belonging to the set of discrete prolate spheroidal sequences is adopted for the reduction of the effects of spectral leakage. Practical suggestions are given for a straightforward applicability of derived results and for an efficient estimation of ADC spectral parameters. Finally, experimental results are presented in order to validate the proposed testing approach

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:50 ,  Issue: 6 )