Volume 34 Issue 7
Jul.  2009
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MAO Yue, SONG Xiaoyong. Spacecraft Position Determination with X-ray Pulsar Navigation of Geometric Methods[J]. Geomatics and Information Science of Wuhan University, 2009, 34(7): 790-793.
Citation: MAO Yue, SONG Xiaoyong. Spacecraft Position Determination with X-ray Pulsar Navigation of Geometric Methods[J]. Geomatics and Information Science of Wuhan University, 2009, 34(7): 790-793.
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Spacecraft Position Determination with X-ray Pulsar Navigation of Geometric Methods

  • 1 Institute of Surveying and Mapping,Information Engineering University,66 Middle Longhai Road,Zhengzhou 450052,China;2 Xi'an Research Institute of Surveying and Mapping,1 Middle Section,Yanta Road,Xi'an 710054,China

Funds: 国家自然科学基金资助项目(40604003)
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  • Received Date: May 16, 2009
  • Revised Date: May 16, 2009
  • Published Date: July 04, 2009
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  • Geometric methods of spacecraft position determination using single phase and double difference measurements in X-ray pulsar navigation are introduced.Through simulating calculation,the influence of errors on precision of position determination are analysed.The influence of phase error is very large.The error of range measurement,ephemeris and clock offset can all lead to 102 m position determination error.Double difference can eliminate the influence of clock offset but magnifies the ephemeris error.The decrease of position error with the increase of the number of observed pulsar is related to the influence of range measurement error.
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