基于奇异谱分析的地基GPS反演可降水量可行性分析

发布时间：2018-04-14 22:37

本文选题：奇异谱分析 + 地基GPS　；参考：《大地测量与地球动力学》2017年09期

【摘要】：对微波辐射计观测与地基GPS反演的可降水量数据分1个长时段和2个短时段进行奇异谱分析,提取两种数据在不同时段的主体趋势及周期项,验证地基GPS反演可降水量的可行性。结果表明,与微波辐射计观测数据相比,地基GPS反演可降水量数据均方根误差在2mm左右,主体趋势具有较强的相关性,周期相同或相近,利用地基GPS反演可降水量是可行的。
[Abstract]:The precipitable water volume data from microwave radiometer observation and ground-based GPS inversion are analyzed by singular spectrum analysis in one long period and two short periods, and the main trends and periodic terms of the two kinds of data in different periods are extracted.The feasibility of retrieving precipitable water by GPS is verified.The results show that compared with the observed data of microwave radiometer, the root mean square error of the ground-based GPS inversion precipitable water data is about 2mm, the main trend has strong correlation, and the period is the same or similar. It is feasible to use the ground-based GPS to retrieve the precipitable water volume.
【作者单位】：同济大学测绘与地理信息学院;现代工程测量国家测绘地理信息局重点实验室;
【分类号】：P228.4;P407

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