| 参考经验模态分解-独立分量分析及其在GPS多路径误差处理中的应用 |
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| 引用本文： | 罗飞雪,戴吾蛟,唐成盼,黄大伟,伍锡锈.参考经验模态分解-独立分量分析及其在GPS多路径误差处理中的应用[J].测绘学报,2012,41(3):366-371. |
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| 作者姓名： | 罗飞雪 戴吾蛟 唐成盼 黄大伟 伍锡锈 |
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| 作者单位： | 中南大学测绘与国土信息工程系,湖南长沙410083／湖南省精密工程测量与形变灾害监测重点实验室,湖南长沙410083 |
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| 基金项目： | 国家自然科学基金(41074004);湖南省高校创新平台开放基金(10K077) |
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| 摘 要： | 多路径误差在绝大部分应用中,其测站间相关性很弱,不能通过差分观测得到有效削弱,成为高精度GPS动态变形监测中的主要误差源。针对GPS多路径误差的特点,结合具有良好多尺度分解能力的经验模式分解方法(EMD)和具有良好盲分离能力的独立分量分析(ICA)方法,提出带参考信号的EMD-ICA方法来削弱多路径效应的影响。应用实例的结果证明了该方法的有效性。
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| 关 键 词： | 独立分量分析 经验模态分解 GPS 多路径效应 动态变形监测 |
EMD-ICA with Reference Signal Method and Its Application in GPS Multipath |
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| LUO Feixue,DAI Wujiao,TANG Chengpan,HUANG Dawei,WU Xixiu.EMD-ICA with Reference Signal Method and Its Application in GPS Multipath[J].Acta Geodaetica et Cartographica Sinica,2012,41(3):366-371. |
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| Authors: | LUO Feixue DAI Wujiao TANG Chengpan HUANG Dawei WU Xixiu |
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| Institution: | 1,2 1.Department of Surveying Engineering & Geo-Informatics,Central South University,Changsha 410083,China;2.Key Laboratory of Precise Engineering Surveying and Deformation Disaster Monitoring of Hunan Province,Changsha 410083,China |
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| Abstract: | Multipath error is a main influence on high-precision GPS dynamic deformation monitoring results as it is difficult to be mitigated by difference observation in most of applications.A method called EMD-ICA with reference signal is proposed.It combines empirical mode decomposition(EMD) with independent component analysis(ICA).The test shows the effectiveness of this method. |
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| Keywords: | Key words:independent component analysis(ICA) empirical mode decomposition(EMD) GPS multipatheffect dynamic monitoring |
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