Autoregressive Stochastic Clock Jitter Compensation in Analog-to-Digital Converters

Abstract

This paper deals with the mathematical modeling and compensation of stochastic discrete time clock jitter in Analog-to-Digital Converters (ADCs). Two novel, computationally efficient de-jittering sample pilots-based algorithms for baseband signals are proposed: one consisting in solving a sequence of weighted least-squares problems and another that fully leverages the correlated jitter structure in a Kalman filter-type routine. Alongside, a comprehensive and rigorous mathematical analysis of the linearization errors committed is presented, and the work is complemented with extensive synthetic simulations and performance benchmarking with the scope of gauging and stress-testing the techniques in different scenarios.

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Reproductions