地球物理学进展 ›› 2018, Vol. 33 ›› Issue (5): 1767-1772.doi: 10.6038/pg2018BB0412

• 固体地球物理及空间物理学(大气、行星、地球动力学、重磁电及地震学、地热学) • 上一篇    下一篇

基于多模GNSS-MR海平面测高研究

陈发德1,2(),刘立龙1,2,3,*(),黄良珂1,2,黎峻宇1,2   

  1. 1. 广西空间信息与测绘重点实验室,桂林 541004
    2. 桂林理工大学测绘地理信息学院,桂林 541004
    3. 广西钦州学院,广西钦州 535011
  • 收稿日期:2017-12-12 修回日期:2018-06-22 出版日期:2018-10-20 发布日期:2019-01-11
  • 通讯作者: 刘立龙 E-mail:fadechen666@163.com;hn_liulilong@163.com
  • 作者简介:陈发德,男, 1992年生,广西玉林人,硕士研究生,主要从事GNSS技术及应用研究.
  • 基金资助:
    国家自然科学基金项目(41664002);广西空间信息与测绘重点实验室开放基金(16-380-25-27);中青年教师基础能力提升项目(2017KY0267)

Sea surface height monitoring based on Multi-GNSS-MR

CHEN Fa-de1,2(),LIU Li-long1,2,3,*(),HUANG Liang-ke1,2,LI Jun-yu1,2   

  1. 1. Guangxi Key Laboratory of Spatial Information and Geomatics, Guilin 541004, China
    2. College of Geomatic Engineering and Geoinformatics, Guilin University of Technology, Guilin 541004, China
    3. Qinzhou University, Guangxi Qinzhou 535011, China
  • Received:2017-12-12 Revised:2018-06-22 Online:2018-10-20 Published:2019-01-11
  • Contact: Li-long LIU E-mail:fadechen666@163.com;hn_liulilong@163.com

摘要:

基于GNSS-MR导航卫星能提供长期稳定和高时空分辨率的信号等特点,联合利用BDS (L1,L5,L7)、GPS(L1,L2,L5)、GLONASS(L1,L2) 三个卫星导航系统高度角小于20°的SNR数据对海平面高度进行反演,验证多模GNSS-MR监测海平面高度变化的可行性和有效性,得到三者联合反演的海平面高度与验潮站实测数据在2016年190~196天里整体趋势有明显一致性,三者高度监测结果的RMSE皆优于0.323 m,相关系数R优于0.83.多模GNSS-MR监测不仅保证了岸基GNSS站对海平面高度监测连续性及时间分辨率,而且保持较好的整体反演精度.

关键词: 多模GNSS-MR, 海平面高度, BDS, GPS, GLONASS

Abstract:

GNSS-MR owns long-term stability and high temporal and spatial resolution as well as other characteristics. To verify the feasibility and effectiveness of monitoring Sea Surface Height (SSH) based on Multi-GNSS-MR, the SNR data of BDS (L1, L5, L7), GPS (L1, L2, L5), and GLONASS (L1, L2) with elevation angles less than 20° over a period of seven days were used to estimate the SSH. The results show that the RMSE is better than 0.323 m, the correlation coefficient R is better than 0.83. There is a clear consistency between tide gauge data and SSH estimates based on BDS (L1, L5, L7), GPS (L1, L2, L5), and GLONASS (L1, L2) SNR data. The Multi-GNSS-MR method not only improves the resolution of the SSH monitoring base on the coastal GNSS stations, but also maintains good overall SSH estimation accuracy.

Key words: Multi-GNSS-MR, sea surface height, BDS, GPS, GLONASS

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