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X-ray Pulsar/Starlight Doppler Deeply-integrated Navigation Method

Published online by Cambridge University Press:  09 March 2017

Yidi Wang ,
Wei Zheng  and
Dapeng Zhang
Yidi Wang*
Affiliation:
(College of Aerospace Science and Engineering, National University of Defence Technology, Changsha, China)
Wei Zheng
Affiliation:
(College of Aerospace Science and Engineering, National University of Defence Technology, Changsha, China)
Dapeng Zhang
Affiliation:
(College of Aerospace Science and Engineering, National University of Defence Technology, Changsha, China)
*
(E-mail: wangyidi_nav@163.com)
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Abstract

An X-ray pulsar/starlight Doppler deeply-integrated navigation method is proposed in this paper. A starlight Doppler measurement-aided phase propagation model, which can remove the orbital effect within the recorded photon Time Of Arrivals (TOAs), is derived, and guarantees that the pulse phase can be extracted from the converted photon TOAs using computationally efficient methods. Some simulations are performed by a hardware-in-loop system to verify the performance of the integrated pulse phase estimation method as well as of the integrated navigation method. The integrated pulse phase estimation method could achieve an estimation performance similar to the existing method for orbiting vehicles at the cost of much less computational complexity, is capable of handling the signals of millisecond pulsars, and is applicable to various vehicles. In addition, the proposed integrated navigation method could provide reliable positioning results for various vehicles.

Keywords

X-ray Pulsar-based NavigationSignal ProcessingPhase EstimationIntegrated Navigation
Type
Research Article
Information
The Journal of Navigation , Volume 70 , Issue 4 , July 2017 , pp. 829 - 846
Copyright
Copyright © Cambridge University Press 2017 

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References

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