| 基于BDS三频相位多路径误差的土壤湿度反演 |
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| 引用本文： | 聂士海,张显云,付婷,赵飞飞.基于BDS三频相位多路径误差的土壤湿度反演[J].大地测量与地球动力学,2021,41(4):374-377. |
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| 作者姓名： | 聂士海 张显云 付婷 赵飞飞 |
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| 作者单位： | 贵州大学矿业学院,贵阳市花溪区,550025 |
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| 基金项目： | 贵州省科学技术基础研究计划;贵州大学引进人才科研项目;国家自然科学基金 |
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| 摘 要： | 为丰富GNSS-IR技术的数据源，提出一种基于北斗三频载波相位多路径误差的土壤湿度反演方法。实验结果表明，由多路径误差导出的延迟相位与土壤湿度间存在较强的相关性，相关系数为0.97。该方法仅需较少历元的多路径误差便可获得与基于信噪比的GNSS-IR相当的土壤湿度反演精度，更容易实现土壤湿度的高动态监测。
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| 关 键 词： | GNSS-IR 多路径误差 延迟相位 土壤湿度 |
Soil Moisture Retrieval Based on BDS Triple-Frequency Phase Multipath Error |
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| NIE Shihai,ZHANG Xianyun,FU Ting,ZHAO Feifei.Soil Moisture Retrieval Based on BDS Triple-Frequency Phase Multipath Error[J].Journal of Geodesy and Geodynamics,2021,41(4):374-377. |
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| Authors: | NIE Shihai ZHANG Xianyun FU Ting ZHAO Feifei |
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| Institution: | (College of Mining,Guizhou University,Huaxi District,Guiyang 550025,China) |
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| Abstract: | In order to enrich the data source of GNSS-IR technology,we propose a method for soil moisture retrieval based on multipath error of BDS triple-frequency carrier phase.The results show that there is a strong correlation between the delay phase derived from the multipath error and the soil moisture,and the correlation coefficient is 0.97.Because only a few epoch multipath errors are needed,the soil moisture retrieval accuracy comparable to GNSS-IR based on signal-to-noise ratio can be obtained,so the new method makes it easier to achieve high dynamic monitoring of soil moisture. |
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| Keywords: | GNSS interferometric reflectometry multipath error delay phase soil moisture |
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