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Series in
Signal and Information Processing, Vol. 25
edited by Hans-Andrea Loeliger
Georg Wilckens
A New Perspective on Analog-to-Digital
Conversion of Continuous-Time Signals.
1.
Auflage/1st edition 2013, XIV, 100 Seiten/pages, € 64,00.
ISBN 978-3-86628-469-2
This thesis describes a new perspective on analog-to-digital conversion.
An analog signal influences a linear analog system which is time-invariant
between known sampling times. We sample and quantize some state variables of
the analog system and possibly use them to apply control or to modify the
system. Finally the quantized observations are passed to a Kalman-filter,
which recovers an estimate of the input signal. We describe the general design
philosophy, some approaches for the design of the analog part and the
estimator. Simulations verify viability of the operations, and we demonstrate
feasibility of a real system through a proof of concept hardware prototype. We
give illustrating examples to aid transfer of theory to application.
Keywords: analog-to-digital conversion; oversampling
converter; estimation; Kalman filter; factor graph.
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