Acta Geodaetica et Cartographica Sinica ›› 2016, Vol. 45 ›› Issue (2): 131-139.doi: 10.11947/j.AGCS.2016.20150190

Previous Articles     Next Articles

Solution Method and Precision Analysis of Double-difference Dynamic Precise Orbit Determination of BeiDou Navigation Satellite System

LIU Weiping, HAO Jinming, TIAN Yingguo, YU Heli, ZHANG Kang   

  1. School of Navigation and Aerospace Engineering, Information Engineering University, Zhengzhou 450001, China
  • Received:2015-04-10 Revised:2015-08-04 Online:2016-02-20 Published:2016-02-29
  • Supported by:
    Major Projects of the Second Generation Satellite Navigation System in China(No.GFZX0301040308);Doctoral Dissertation Innovation Fund of Information Engineering University(No.S201307)

Abstract: To resolve the high relativity between the transverse element of GEO orbit and double-difference ambiguity, the classical double-difference dynamic method is improved and the method, which is to determine precise BeiDou satellite orbit using carrier phase and pseudo-range smoothed by phase, is proposed. The feasibility of the method is discussed and the influence of the method about ambiguity fixing is analyzed. Considering the characteristic of BeiDou, the method, which is to fix double-difference ambiguity of BeiDou satellites by QIF, is derived. The real data analysis shows that the new method, which can reduce the relativity and assure the precision, is better than the classical double-difference dynamic method. The result of ambiguity fixing is well by QIF, but the ambiguity fixing success rate is not high on the whole. So the precision of BeiDou orbit can't be improved clearly after ambiguity fixing.

Key words: BeiDou Navigation Satellite System, double-difference dynamic method, precise orbit determination, ambiguity fixing, precision analysis

CLC Number: