Giampaolo Cimatti

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This paper is devoted to show the impact of nonwhite chopping on the offset compensation in time-interleaved analog-to-digital converters. We develop a theoretical framework allowing the selection of optimal chopping sequences. We show that, on the one hand, the adoption of these (generally nonwhite) sequences allows to achieve faster offset compensation(More)
This brief makes an important step forward on the ideas first presented in our earlier paper about the use of nonwhite chopping sequences for offset compensation in timeinterleaved analog-to-digital converters. More specifically, we present an adaptive system that takes advantage of nonwhite chopping in slowly nonstationary settings. Simulations show that(More)
Haemagglutination inhibiting antibodies (H.I.A.) to influenza viruses A/Victoria/3/75, A/Victoria/112/76, B/Hong Kong/8/73 and A/New Jersey/8/76 were titrated in 1110 serum specimens collected in Rome in the period between March-May 1977 and obtained from subjects 0-60 years old. The H.I.A. protective level (greater than or equal to 1 : 40) found in 21.7%(More)
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