A view on filtering of continuous data signals
Ivan Nagy, Miroslav Kárný (1992)
Kybernetika
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Ivan Nagy, Miroslav Kárný (1992)
Kybernetika
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Vladimir Bogdanov, Wladimir Karsten, Valeriy Miroshnichenko, Yuriy Volkov (2013)
Open Mathematics
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A method for solving the inverse kinematic problem of determining the velocity characteristic of a medium from a vertical seismic survey, is proposed. It is based on the combined use of the eikonal equation and spline methods of approximation for multivariable functions. The problem is solved by assuming a horizontally stratified medium; no assumptions about the number of layers and their thickness are made. First, using the data of the first arrival times of the seismic signal from...
Clímaco, João C.N., Patrício, F. (1980)
Portugaliae mathematica
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Miroslav Kárný, Ivan Nagy, Josef Böhm, Alena Halousková (1990)
Kybernetika
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Breaz, Nicoleta (2004)
Acta Universitatis Apulensis. Mathematics - Informatics
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Magnus Egerstedt, Clyde Martin (2003)
ESAIM: Control, Optimisation and Calculus of Variations
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In this paper it is shown that the generalized smoothing spline obtained by solving an optimal control problem for a linear control system converges to a deterministic curve even when the data points are perturbed by random noise. We furthermore show that such a spline acts as a filter for white noise. Examples are constructed that support the practical usefulness of the method as well as gives some hints as to the speed of convergence.