Orbit determination using incremental phase and TDOA of X-ray pulsar

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• 作者：Rong Jiao ; Lu-ping Xu ; Hua Zhang ; Cong Li
• 刊名：Frontiers of Information Technology & Electronic Engineering
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：17
• 期：6
• 页码：543-552
• 全文大小：728 KB
• 刊物类别：Computer Science, general; Electrical Engineering; Computer Hardware; Computer Systems Organization
• 刊物主题：Computer Science, general; Electrical Engineering; Computer Hardware; Computer Systems Organization and Communication Networks; Electronics and Microelectronics, Instrumentation; Communications Engine
• 出版者：Zhejiang University Press
• ISSN：2095-9230
• 卷排序：17

文摘

X-ray pulsars offer stable, periodic X-ray pulse sequences that can be used in spacecraft positioning systems. A method using X-ray pulsars to determine the initial orbit of a satellite is presented in this paper. This method suggests only one detector to be equipped on the satellite and assumes that the detector observes three pulsars in turn. To improve the performance, the use of incremental phase in one observation duration is proposed, and the incremental phase is combined with the time difference of arrival (TDOA). Then, a weighted least squares (WLS) algorithm is formulated to calculate the initial orbit. Numerical simulations are performed to assess the proposed orbit determination method.KeywordsOrbit determination algorithmSingle X-ray pulsar detectorPhase incrementTwo-body motion equationsWeighted least squares method