文章基本信息

标题：Characteristics of multipath effects in GPS dynamic deformation monitoring
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作者：Huang Shengxiang ; Jin Xiangsheng ; Yang Baocen 等
期刊名称：Geo-spatial Information Science
印刷版ISSN：1009-5020
电子版ISSN：1993-5153
出版年度：2006
卷号：9
期号：2
页码：79-83
DOI：10.1007/BF02826929
出版社：Taylor and Francis Ltd
摘要：The multipath has long been considered a major error source in GPS applications. The characteristics of the GPS signal multipath effects are analyzed, based on which an experiment that considers the characteristics of dynamic deformation monitoring has been carried out. The solution results of observation data in two successive days are processed by a method, which combines the wavelet filtering and the differential correction between two successive days. The research demonstrates that the multipath errors have stronger repeatability on successive days; after significantly mitigating the influence of multipath effects, the accuracy of three-dimensional positioning for GPS dynamic deformation monitoring can attain the mm level, an obvious accuracy improving particularly in vertical component. The characteristics of GPS signal multipath, the experimental scheme and the qualitative and quantitative analysis of results are detailed.
关键词：GPS; dynamic deformation monitoring; multipath effects; error characteristic