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URN: urn:nbn:de:swb:90-351157

Nonlinear Information Filtering for Distributed Multisensor Data Fusion

Noack, Benjamin; Lyons, Daniel; Nagel, Matthias; Hanebeck, Uwe D.

The information filter has evolved into a key tool for distributed and decentralized multisensor estimation and control. Essentially, it is an algebraical reformulation of the Kalman filter and provides estimates on the information about an uncertain state rather than on a state itself. Whereas many practicable Kalman filtering techniques for nonlinear system and sensor models have been developed, approaches towards nonlinear information filtering are still scarce and limited. In order to deal with nonlinear systems and sensors, this paper derives an approximation technique for arbitrary probability densities that provides the same distributable fusion structure as the linear information filter. The presented approach not only constitutes a nonlinear version of the information filter, but it also points the direction to a Hilbert space structure on probability densities, whose vector space operations correspond to the fusion and weighting of information.

Zugehörige Institution(en) am KIT Institut für Anthropomatik (IFA)
Publikationstyp Proceedingsbeitrag
Jahr 2011
Sprache Englisch
Identifikator ISBN: 978-1-4577-0080-4
KITopen ID: 1000035115
Erschienen in Proceedings of the 2011 American Control Conference (ACC 2011), San Francisco, California, USA, June 29 2011-July 1 2011
Verlag IEEE, Piscataway
Seiten 4846-4852
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