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Unscented Particle Smoother and its Application to Transfer Alignment of Airborne Distributed POS

Gong, Xiaolin, Zheng, Xiaorui, Yan, Xinggang, Lu, Zhaoxin (2018) Unscented Particle Smoother and its Application to Transfer Alignment of Airborne Distributed POS. International Journal of Aerospace Engineering, . Article Number 3898734. ISSN 1687-5966. E-ISSN 1687-5974. (doi:10.1155/2018/3898734) (KAR id:69231)

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http://dx.doi.org/10.1155/2018/3898734

Abstract

This paper deals with the problem of state estimation for the transfer alignment of airborne distributed position and orientation system (distributed POS). For a nonlinear system, especially with large initial attitude errors, the performance of linear estimation methods will degrade. In this paper a nonlinear smoothing algorithm called the unscented particle smoother (UPS) is proposed and utilized in the off-line transfer alignment of airborne distributed POS. In this algorithm, the measurements are first processed by the forward unscented particle filter (UPF) and then a backward smoother is used to achieve the improved solution. The performance of this algorithm is compared with that of a similar smoother known as the Unscented Rauch-Tung-Striebel Smoother. The simulation results show that the UPS effectively improves the estimation accuracy and this work offers a new off-line transfer alignment approach of distributed POS for multi-antenna synthetic aperture radar and other airborne earth observation tasks.

Item Type: Article
DOI/Identification number: 10.1155/2018/3898734
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Xinggang Yan
Date Deposited: 24 Sep 2018 14:03 UTC
Last Modified: 09 Jan 2024 05:05 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/69231 (The current URI for this page, for reference purposes)

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