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Cited by 6,588

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Unscented Filtering and Nonlinear Estimation

Julier, S.J., Uhlmann, J.K.·2004·Proceedings of the IEEE

Abstract

The extended Kalman filter (EKF) is probably the most widely used estimation algorithm for nonlinear systems. However, more than 35 years of experience in the estimation community has shown that is difficult to implement, difficult to tune, and only reliable for systems that are almost linear on the time scale of the updates. Many of these difficulties arise from its use of linearization. To overcome this limitation, the unscented transformation (UT) was developed as a method to propagate mean and covariance information through nonlinear transformations. It is more accurate, easier to implement, and uses the same order of calculations as linearization. This paper reviews the motivation, development, use, and implications of the UT.

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Metadata

Authors
Julier, S. J., & Uhlmann, J. K.
Venue
Proceedings of the IEEE
Published
2004-03
Volume
92
Issue
3
Pages
401-422
ISSN
0018-9219 (ISSN-L)
OpenAlex
W2123487311
Cited by
6,588
References
3
FWCI
131.16
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Unscented Filtering and Nonlinear Estimation. https://app.cochat.ai/papers/10.1109/jproc.2003.823141
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Julier, S. J., & Uhlmann, J. K. (2004). Unscented Filtering and Nonlinear Estimation. Proceedings of the IEEE. https://doi.org/10.1109/jproc.2003.823141

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.