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Optimal averaging time for improving observer accuracy of stochastic dynamical systems
dc.contributor.author | Balaguer, Pedro | |
dc.contributor.author | Ibeas, Asier | |
dc.date.accessioned | 2021-02-11T08:33:06Z | |
dc.date.available | 2021-02-11T08:33:06Z | |
dc.date.issued | 2020-09-02 | |
dc.identifier.citation | BALAGUER, Pedro; IBEAS, Asier. Optimal averaging time for improving observer accuracy of stochastic dynamical systems. ISA transactions, 2020. | ca_CA |
dc.identifier.issn | 0019-0578 | |
dc.identifier.issn | 0019-0578 | |
dc.identifier.uri | http://hdl.handle.net/10234/191924 | |
dc.description.abstract | In the problem of remote estimation by a centralized observer, improvements to the accuracy of observer estimates come at a cost of higher communication bandwidth and energy consumption. In this article we improve observer estimation accuracy by reducing the measurement variance on the sensor node before its transmission to the centralized observer node. The main contribution is to show that measurement variance is a trade-off between dynamical system variance and sensor variance. As a result there is an optimal averaging time that minimizes measurement variance, providing more accurate measurement to the observer. The optimal averaging time is computable by solving a univariate optimization problem. | ca_CA |
dc.format.extent | 13 p. | ca_CA |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.publisher | ISA | ca_CA |
dc.relation.isPartOf | ISA Transactions Volume 108, February 2021, Pages 207-219 | ca_CA |
dc.rights | ©2020 ISA. Published byElsevier Ltd. All rights reserved | ca_CA |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.subject | smart sensors | ca_CA |
dc.subject | wireless sensor networks | ca_CA |
dc.subject | observer | ca_CA |
dc.subject | stochastic processes | ca_CA |
dc.subject | optimal averaging time | ca_CA |
dc.subject | Kalman filter | ca_CA |
dc.title | Optimal averaging time for improving observer accuracy of stochastic dynamical systems | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1016/j.isatra.2020.08.039 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | https://www.sciencedirect.com/science/article/pii/S0019057820303712#! | ca_CA |
dc.type.version | info:eu-repo/semantics/acceptedVersion |
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