Chinese Journal of Theoretical and Applied Mechani ›› 2012, Vol. 44 ›› Issue (5): 912-918.DOI: 10.6052/0459-1879-12-005

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ALGORITHM FOR X-RAY PULSAR-BASED NAVIGATION USING A SINGLE DETECTOR IN THE DEEP SPACE EXPLORATION

Wang Yidi1, Tang Geshi2, Zheng Wei1, Li Li2   

  1. 1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;
    2. Science and Technology on Aerospace Flight Dynamics Laboratory, Beijing 100094, China
  • Received:2012-01-06 Revised:2012-06-06 Online:2012-09-23 Published:2012-09-30
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (10973048) and the Open Research Foundation of Science and Technology on Aerospace Flight Dynamics Laboratory (AFDL2012002).

Abstract:

Algorithm for X-ray pulsar-based navigation using a single detector in the deep space exploration is proposed.The measurement information obtained from a single detector at different measurement times is used to establish an improved measurement model,and then deep space spacecraft need not to carry many X-ray detectors to navigate.The obsevabiltiy of the navigation system with available measurement schemes is investigated using a linear obsevability analysis.The analysis shows that spacecraft should measure various X-ray pulsars at different measurement times in order to get a desirable performance of the navigation system.Corresponding simulations are given.The results of the simulations show that the navigation accuracy of the algorithm is similar with that of traditional algorithm.The results of this work show that the quality of an X-ray pulsar-based navigation system can be reduced greatly by using this algorithm and that this algorithm can provide a possible method of the industrialization of X-ray pulsar-based navigation.

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Key words:

X-ray pulsar-based navigation|observability analysis|a single detector|deep space exploration

CLC Number: