Abstract

This paper presents the results of using adaptive Wiener filtering to dynamically estimate the parameters of interferometric signals. It is shown that the interference-fringe parameters, including the phase of the fringes, can be directly computed from the coefficients obtained by an adaptive Wiener filter and the criterion of the minimum error variance. The method considered here introduces no limitations on the number and size of the given phase shifts and makes it possible to determine the actual phase shift. Estimates are given of the errors of the method when observation noise and random deviations of the phase-shift step are present.

© 2020 Optical Society of America

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