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Passive Location Method of Beidou Geostationary Satellites Positioning System Aided by Pseudolites

Liu Ruihua Zhang Fan (Institute of CNS/ATM,Civil Aviation University of China,Tianjin 300300)   

  • Published:2010-08-25 Online:2010-08-25
  • Supported by:
    国家高技术发展计划(863计划)(2006AA12Z313)

Abstract: At present,China's Beidou geostationary satellites positioning system can only achieve two-dimensional active location,which greatly limits its application. A passive location method was put forward by using pseudolites to aid Beidou Geostationary Satellites Positioning System. The positioning theory of this system was discussed and the system time synchronization problem was analyzed. The effects of number and layout of pseudolites on the system accuracy were researched by mathematical simulation. The results show that the proposed method is feasible,which can enhance the usability,reliability,stability and the location precision of the system.