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Bounds on the Optimal Performance for Jump Markov Linear Gaussian Systems
IFEN GmbH, Germany .
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2013 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 61, no 1, 92-98 p.Article in journal (Refereed) Published
Abstract [en]

The performance of an optimal filter is lower bounded by the Bayesian Cramer-Rao Bound (BCRB). In some cases, this bound is tight (achieved by the optimal filter) asymptotically in information, i.e., high signal-to-noise ratio (SNR). However, for jump Markov linear Gaussian systems (JMLGS) the BCRB is not necessarily achieved for any SNR. In this paper, we derive a new bound which is tight for all SNRs. The bound evaluates the expected covariance of the optimal filter which is represented by one deterministic term and one stochastic term that is computed with Monte Carlo methods. The bound relates to and improves on a recently presented BCRB and an enumeration BCRB for JMLGS. We analyze their relations theoretically and illustrate them on a couple of examples.

Place, publisher, year, edition, pages
IEEE Signal Processing Society, 2013. Vol. 61, no 1, 92-98 p.
Keyword [en]
Jump Markov linear Gaussian systems, Performance bounds, Statistical signal processing
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-89524DOI: 10.1109/TSP.2012.2223690ISI: 000313896100011OAI: oai:DiVA.org:liu-89524DiVA: diva2:608232
Funder
Swedish Research Council
Note

Funding Agencies|Linneaus Center for Control, Autonomy, and Decision-making in Complex Systems (CADICS)||Swedish Research Council (VR)||

Available from: 2013-02-26 Created: 2013-02-26 Last updated: 2017-12-06

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Fritsche, CarstenGustafsson, Fredrik

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  • apa
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