| 惯性辅助强多径环境中的北斗三频周跳探测与修复 |
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| 引用本文： | 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(Z2):179-187. |
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| 作者姓名： | 宁一鹏 王坚 扈旋旋 王世达 |
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| 作者单位： | 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 |
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| 基金项目： | 国土资源部公益性行业科研专项(201411007-1)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。
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| 关 键 词： | 多路径 北斗 惯性辅助 松组合 周跳探测 |
| 收稿时间： | 2016-11-25 |
| 修稿时间： | 2016-12-20 |
Inertial Aided Cycle-slip Detection and Repair for BDS Triple-frequency Signal in Severe Multipath Environment |
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| NING Yipeng,WANG Jian,HU Xuanxuan,WANG Shida.Inertial Aided Cycle-slip Detection and Repair for BDS Triple-frequency Signal in Severe Multipath Environment[J].Acta Geodaetica et Cartographica Sinica,2016,45(Z2):179-187. |
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| Authors: | NING Yipeng WANG Jian HU Xuanxuan WANG Shida |
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| Institution: | 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 |
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| 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. |
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| Keywords: | multipath effects BDS inertial aided loose coupling cycle-slip detection |
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