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Abstract
In this paper, we use the optimization formulation of nonlinear Kalman filtering and smoothing problems to develop second-order variants of iterated Kalman smoother (IKS) methods. We show that Newton's method corresponds to a recursion over affine smoothing problems on a modified state-space model augmented by a pseudo measurement. The first and second derivatives required in this approach can be efficiently computed with widely available automatic differentiation tools. Furthermore, we show how to incorporate line-search and trust-region strategies into the proposed second-order IKS algorithm in order to regularize updates between iterations. Finally, we provide numerical examples to demonstrate the method's efficiency in terms of runtime compared to its batch counterpart.
Original language | English |
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Title of host publication | 31st European Signal Processing Conference, EUSIPCO 2023 - Proceedings |
Publisher | European Signal Processing Conference (EUSIPCO) |
Pages | 1758-1762 |
Number of pages | 5 |
ISBN (Electronic) | 978-9-4645-9360-0 |
DOIs | |
Publication status | Published - 2023 |
MoE publication type | A4 Conference publication |
Event | European Signal Processing Conference - Helsinki, Finland Duration: 4 Sept 2023 → 8 Sept 2023 Conference number: 31 https://eusipco2023.org/ |
Publication series
Name | European Signal Processing Conference |
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ISSN (Print) | 2219-5491 |
Conference
Conference | European Signal Processing Conference |
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Abbreviated title | EUSIPCO |
Country/Territory | Finland |
City | Helsinki |
Period | 04/09/2023 → 08/09/2023 |
Internet address |
Keywords
- iterated Kalman filter and smoother
- line search
- Newton's method
- state-space model
- trust region
Fingerprint
Dive into the research topics of 'A Recursive Newton Method for Smoothing in Nonlinear State Space Models'. Together they form a unique fingerprint.Projects
- 1 Finished
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-: Finnish Center for Artificial Intelligence
Kaski, S. (Principal investigator)
01/01/2019 → 31/12/2022
Project: Academy of Finland: Other research funding