测绘学报 ›› 2016, Vol. 45 ›› Issue (S2): 179-187.doi: 10.11947/j.AGCS.2016.F040

• 论文 • 上一篇    下一篇

惯性辅助强多径环境中的北斗三频周跳探测与修复

宁一鹏1,2, 王坚1,2, 扈旋旋1,2, 王世达1,2   

  1. 1. 中国矿业大学国土环境与灾害监测国家测绘地理信息局重点实验室, 江苏 徐州 221116;
    2. 中国矿业大学环境与测绘学院, 江苏 徐州 221116
  • 收稿日期:2016-11-25 修回日期:2016-12-20 出版日期:2017-05-20 发布日期:2017-05-20
  • 通讯作者: 王坚 E-mail:wjiancumt@163.com
  • 作者简介:宁一鹏(1990-),男,博士生,研究方向为GNSS/INS组合导航理论与应用。E-mail:3891197ning@163.com
  • 基金资助:

    国土资源部公益性行业科研专项(201411007-1)

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

摘要:

针对北斗三频信号,引入了惯性信息辅助周跳探测与修复,建立了北斗/INS松组合模型,提高了多径误差严重影响下的BDS周跳探测成功率和修复率。在常规伪距-相位组合与几何无关组合探测三频周跳的基础上,提出了INS定位辅助的北斗三频组合法,构建了INS辅助的周跳决策量,分析了INS定位误差对周跳探测的影响。该方法克服了周跳探测受伪距观测值精度影响的不足,实现了北斗系统多径环境中的小周跳探测。试验采用船载INS/BDS三频组合系统进行数据实测分析,结果表明,在水面强多径噪声环境导致传统三频探测模型失效的情况下,该方法显著提高了探测成功率与修复率,并适用于低频北斗观测数据。

关键词: 多路径, 北斗, 惯性辅助, 松组合, 周跳探测

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

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