基于小波分析的多模多频GNSS-MR潮位反演  

Sea Level Retrieval Using Multi-GNSS Multipath Reflectometry Based on Wavelet Analysis

作　　者：陈殊 何秀凤[1] 王笑蕾 宋敏峰 CHEN Shu;HE Xiufeng;WANG Xiaolei;SONG Minfeng(School of Earth Sciences and Engineering,Hohai University,8 West-Focheng Road,Nanjing 211100,China)

机构地区：[1]河海大学地球科学与工程学院,南京市211100

出　　处：《大地测量与地球动力学》2022年第4期365-370,共6页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(41830110);国家重点研发计划(2018YFC1503603)。

摘　　要：基于小波分析方法,利用GPS、GLONASS、Galileo和Beidou观测数据,通过对不同类型的信噪比数据进行质量分析,筛选质量较好的数据提取瞬时潮位。实验结果表明,基于小波分析的多模多频GNSS-MR潮位反演可大幅提升潮位反演结果的时间分辨率,且精度与LSP方法相当,可达到dm级。Based on the wavelet analysis method,using the observation data of GPS,GLONASS,Galileo and Beidou,we select the better quality data to extract the instantaneous tide level through the quality analysis of different types of signal-to-noise ratio data.The experimental results show that the sea level retrieval using multi-GNSS multipath reflectometry based on wavelet analysis greatly improves the time resolution of tide level inversion results,and the accuracy is equivalent to LSP method,which can reach decimeter level.

关 键 词：潮位监测 多路径反射 小波分析 多模多频 信噪比 

分 类 号：P228[天文地球—大地测量学与测量工程]