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; 王坚; 扈旋旋; 王世达

doi:10.11947/j.AGCS.2016.F040

测绘学报 >

2016 , Vol. 45 >Issue S2: 179 - 187

DOI: https://doi.org/10.11947/j.AGCS.2016.F040

论文

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 ,
王坚 ,
扈旋旋 ,
王世达

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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

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

收稿日期: 2016-11-25

修回日期: 2016-12-20

网络出版日期: 2017-05-20

基金资助

国土资源部公益性行业科研专项（201411007-1）

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

NING Yipeng ,
WANG Jian ,
HU Xuanxuan ,
WANG Shida

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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 date: 2016-11-25

Revised date: 2016-12-20

Online published: 2017-05-20

Supported by

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

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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

本文引用格式

宁一鹏 , 王坚 , 扈旋旋 , 王世达 . 惯性辅助强多径环境中的北斗三频周跳探测与修复[J]. 测绘学报, 2016 , 45(S2) : 179 -187 . DOI: 10.11947/j.AGCS.2016.F040

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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