Selection of the Beacon Pulsars in Pulsars Navigation

doi:10.3780./j.issn.1000-758X.2011.05.009

Chinese Space Science and Technology ›› 2011, Vol. 31 ›› Issue (5): 64-69.doi: 10.3780./j.issn.1000-758X.2011.05.009

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Selection of the Beacon Pulsars in Pulsars Navigation

CHU Yong-Hui^1,2, WANG Da-Yi^1,2, HUANG Xiang-Yu^1,2

（1 北京控制工程研究所,北京 100190）（2 空间智能控制技术重点实验室,北京 100190）

Received:2011-03-09 Revised:2011-03-29 Published:2011-10-25 Online:2011-10-25

Abstract

Abstract: The analysis of X-ray pulsars principle shows that the beacon pulsars position and measurement error directly affect the navigation performance. To select the best beacon pulsars group, a selection method was developed based on the error covariance analysis. This method defines the criteria of PDOP (Positioning Dilution of Precision)and PSC (Pulsars Select Criteria), considering the effect of pulsars distribution and the measurement errors. Taking the circle phase of the Mars as an example, the method is validated through numerical simulation.

Key words: X-ray pulsars, Positioning dilution of precision, Measurement error, Pulsars navigation

CHU Yong-Hui, WANG Da-Yi, HUANG Xiang-Yu. Selection of the Beacon Pulsars in Pulsars Navigation[J]. Chinese Space Science and Technology, 2011, 31(5): 64-69.

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Selection of the Beacon Pulsars in Pulsars Navigation

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