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Pulsar navigation for interplanetary missions using CV model and ASUKF

Pulsar navigation for interplanetary missions using CV model and ASUKF
Pulsar navigation for interplanetary missions using CV model and ASUKF
To improve the navigation performance with the pulsar direction error and the clock error, X-ray pulsar navigation for interplanetary missions is proposed. We analyze the clock error and the system bias caused by the pulsar direction error, and find that the system bias is large but the bias’ variation velocity and the clock frequency error within a short time can be viewed as constants. Thus, both the bias and clock error can be modeled as the constant velocity (CV) model, and the augmented state unscented Kalman filter (ASUKF) is utilized here to deal with them and estimate the spacecraft’s positions. The simulation results demonstrate that the proposed method can improve the navigation accuracy in the presence of the clock error and the pulsar direction error.
1270-9638
19-23
Lui, J.
5d26c472-fbd5-4bdc-980a-d03851363797
Jie, M.
7dba82b4-177e-4a96-855b-2263f5b645a7
Kang, Z.
eccfb1ea-9864-4ae7-ba4a-ee39d0413b17
White, P.R.
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Lui, J.
5d26c472-fbd5-4bdc-980a-d03851363797
Jie, M.
7dba82b4-177e-4a96-855b-2263f5b645a7
Kang, Z.
eccfb1ea-9864-4ae7-ba4a-ee39d0413b17
White, P.R.
2dd2477b-5aa9-42e2-9d19-0806d994eaba

Lui, J., Jie, M., Kang, Z. and White, P.R. (2012) Pulsar navigation for interplanetary missions using CV model and ASUKF. Aerospace Science and Technology, 22 (1), 19-23. (doi:10.1016/j.ast.2011.04.010).

Record type: Article

Abstract

To improve the navigation performance with the pulsar direction error and the clock error, X-ray pulsar navigation for interplanetary missions is proposed. We analyze the clock error and the system bias caused by the pulsar direction error, and find that the system bias is large but the bias’ variation velocity and the clock frequency error within a short time can be viewed as constants. Thus, both the bias and clock error can be modeled as the constant velocity (CV) model, and the augmented state unscented Kalman filter (ASUKF) is utilized here to deal with them and estimate the spacecraft’s positions. The simulation results demonstrate that the proposed method can improve the navigation accuracy in the presence of the clock error and the pulsar direction error.

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More information

Published date: November 2012
Organisations: Signal Processing & Control Grp

Identifiers

Local EPrints ID: 353131
URI: http://eprints.soton.ac.uk/id/eprint/353131
ISSN: 1270-9638
PURE UUID: 0c8837c0-94fc-4586-b74c-acca993b4748
ORCID for P.R. White: ORCID iD orcid.org/0000-0002-4787-8713

Catalogue record

Date deposited: 30 May 2013 13:30
Last modified: 11 Jul 2024 01:33

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Contributors

Author: J. Lui
Author: M. Jie
Author: Z. Kang
Author: P.R. White ORCID iD

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