Filtering of Multidimensional Stationary Processes with Missing Observations

The problem of the mean-square optimal linear estimation of linear functionals which depend on the unknown values of a multidimensional continuous time stationary stochastic process from observations of the process with a stationary noise is considered. Formulas for calculating the mean-square error...

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Main Authors: Mikhail Moklyachuk, Maria Sidei, Oleksandr Masyutka
Format: Article
Language:English
Published: Emrah Evren KARA 2019-03-01
Series:Universal Journal of Mathematics and Applications
Subjects:
Online Access:https://dergipark.org.tr/tr/download/article-file/675309
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author Mikhail Moklyachuk
Maria Sidei
Oleksandr Masyutka
author_facet Mikhail Moklyachuk
Maria Sidei
Oleksandr Masyutka
author_sort Mikhail Moklyachuk
collection DOAJ
description The problem of the mean-square optimal linear estimation of linear functionals which depend on the unknown values of a multidimensional continuous time stationary stochastic process from observations of the process with a stationary noise is considered. Formulas for calculating the mean-square errors and the spectral characteristics of the optimal linear estimates of the functionals are derived under the condition of spectral certainty, where spectral densities of the signal and the noise processes are exactly known. The minimax (robust) method of estimation is applied in the case of spectral uncertainty, where spectral densities of the processes are not known exactly, while some sets of admissible spectral densities are given. Formulas that determine the least favorable spectral densities and minimax spectral characteristics of the optimal estimates are derived for some special sets of admissible spectral densities.
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spelling doaj.art-bfb5984075fc4f63b7e7d250e13a3c9e2024-01-21T10:07:06ZengEmrah Evren KARAUniversal Journal of Mathematics and Applications2619-96532019-03-0121243210.32323/ujma.4729291225Filtering of Multidimensional Stationary Processes with Missing ObservationsMikhail Moklyachuk0Maria Sidei1Oleksandr Masyutka2Taras Shevchenko National University of KyivTaras Shevchenko National University of KyivTaras Shevchenko National University of KyivThe problem of the mean-square optimal linear estimation of linear functionals which depend on the unknown values of a multidimensional continuous time stationary stochastic process from observations of the process with a stationary noise is considered. Formulas for calculating the mean-square errors and the spectral characteristics of the optimal linear estimates of the functionals are derived under the condition of spectral certainty, where spectral densities of the signal and the noise processes are exactly known. The minimax (robust) method of estimation is applied in the case of spectral uncertainty, where spectral densities of the processes are not known exactly, while some sets of admissible spectral densities are given. Formulas that determine the least favorable spectral densities and minimax spectral characteristics of the optimal estimates are derived for some special sets of admissible spectral densities.https://dergipark.org.tr/tr/download/article-file/675309minimax-robust estimateleast favourable spectral density
spellingShingle Mikhail Moklyachuk
Maria Sidei
Oleksandr Masyutka
Filtering of Multidimensional Stationary Processes with Missing Observations
Universal Journal of Mathematics and Applications
minimax-robust estimate
least favourable spectral density
title Filtering of Multidimensional Stationary Processes with Missing Observations
title_full Filtering of Multidimensional Stationary Processes with Missing Observations
title_fullStr Filtering of Multidimensional Stationary Processes with Missing Observations
title_full_unstemmed Filtering of Multidimensional Stationary Processes with Missing Observations
title_short Filtering of Multidimensional Stationary Processes with Missing Observations
title_sort filtering of multidimensional stationary processes with missing observations
topic minimax-robust estimate
least favourable spectral density
url https://dergipark.org.tr/tr/download/article-file/675309
work_keys_str_mv AT mikhailmoklyachuk filteringofmultidimensionalstationaryprocesseswithmissingobservations
AT mariasidei filteringofmultidimensionalstationaryprocesseswithmissingobservations
AT oleksandrmasyutka filteringofmultidimensionalstationaryprocesseswithmissingobservations