王泽明,常亮,冯贵平,朱卫东

• 1:上海海洋大学海洋科学学院

摘要(Abstract)：

针对已有的GNSS-R反演潮位过程中由测站与潮位基准面高度的不确定性带来的误差,该文提出了一种自适应测站高优化方法。该方法通过更新Lomb-Scargle谱分析噪声频率的阈值,可有效剔除噪声主频,从而提高GNSS-R反演潮位的精度。基于30 s采样间隔的GNSS的L2波段数据进行潮位反演的实验表明,该文提出的方法有效提高了GNSS-R反演潮位的精度。与传统反演方法相比,反演潮位与验潮站观测潮位之间的均方根误差降低了28.3%,相关系数提升了12.3%。同时,该文还证实了所提出方法求解出的自验潮站基准面起算的测站高度,可进一步应用于无验潮站或验潮站数据中断情况下的GNSS潮位反演。

关键词(KeyWords)： 全球卫星导航系统反射技术;信噪比;Lomb-Scargle谱分析;自适应测站高

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41506211);; 上海市浦江人才计划项目(19PJ1404300)

作者(Author): 王泽明,常亮,冯贵平,朱卫东

DOI: 10.16251/j.cnki.1009-2307.2021.08.007

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