Acta Geodaetica et Cartographica Sinica ›› 2016, Vol. 45 ›› Issue (S2): 179-187.doi: 10.11947/j.AGCS.2016.F040

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Inertial Aided Cycle-slip Detection and Repair for BDS Triple-frequency Signal in Severe Multipath Environment

NING Yipeng1,2, WANG Jian1,2, HU Xuanxuan1,2, WANG Shida1,2   

  1. 1. NASG Key Laboratory for Land Environment and Disaster Monitoring, China University of Mining and Technology, Xuzhou 221116, China;
    2. School of Environment Science and Spatial Information, China University of Mining and Technology, Xuzhou 221116, China
  • Received:2016-11-25 Revised:2016-12-20 Online:2017-05-20 Published:2017-05-20
  • Supported by:

    The Public welfare industry scientific research projects of Ministry of Land and Resources

Abstract:

Inertial information has been proposed to improve the success rate and repair rate for BDS triple-frequency cycle-slip detection in severe environment with multipath effects.At the same time, a BDS/INS loose coupled model has been developed. An innovative INS aided BDS triple-frequency combination method was developed which based on the traditional method of code-phase combination and geometry-free linear combination. The INS aided cycle-slip detection monitoring value was established and the effect of INS positioning error on cycle-slip capacity was analyzed. The proposed method overcomes the shortcoming of cycle-slip detection capacity influenced by the pseudorange observation precision. It also realizes small cycle-slips detection for BDS in severe multipath effects environment. At last, a field test was analysised with INS/BDS triple-frequency integrated positioning system onboard. The results indicate that the method proposed in this paper shows a high cycle-slip detection success rate and repair rate, when traditional triple-frequency detection model losed efficacy above water surface with multipath effects, and it also can be effective in low frequency sampling data.

Key words: multipath effects, BDS, inertial aided, loose coupling, cycle-slip detection

CLC Number: