A New Approach to Signal Registration with the Emphasis on Variable Time Delay Estimation

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Signal registration is concerned with the problem of estimating a varying displacement between two random processes. We approach signal registration here as a recursive demodulation problem in which the recursion is between signal estimations and displacement estimation. Special attention is given to the problem of estimating a variable time delay. Thus, we present new algorithms for estimating D(t) from received processes: [eq.] where s [formula omitted] is signal and n1 (•) and n2 (•) are noise. Simulation results are presented and discussed. Copyright © 1987 by The Institute of Electrical and Electronics Engineers, Inc.

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IEEE Transactions on Acoustics, Speech, and Signal Processing