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SVRM辅助的北斗GEO卫星反射信号土壤湿度反演方法

杨磊 吴秋兰 张波 梁勇 洪学宝 邹文博

杨磊, 吴秋兰, 张波, 等 . SVRM辅助的北斗GEO卫星反射信号土壤湿度反演方法[J]. 北京航空航天大学学报, 2016, 42(6): 1134-1141. doi: 10.13700/j.bh.1001-5965.2015.0656
引用本文: 杨磊, 吴秋兰, 张波, 等 . SVRM辅助的北斗GEO卫星反射信号土壤湿度反演方法[J]. 北京航空航天大学学报, 2016, 42(6): 1134-1141. doi: 10.13700/j.bh.1001-5965.2015.0656
YANG Lei, WU Qiulan, ZHANG Bo, et al. SVRM-assisted soil moisture retrieval method using reflected signal from BeiDou GEO satellites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(6): 1134-1141. doi: 10.13700/j.bh.1001-5965.2015.0656(in Chinese)
Citation: YANG Lei, WU Qiulan, ZHANG Bo, et al. SVRM-assisted soil moisture retrieval method using reflected signal from BeiDou GEO satellites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(6): 1134-1141. doi: 10.13700/j.bh.1001-5965.2015.0656(in Chinese)

SVRM辅助的北斗GEO卫星反射信号土壤湿度反演方法

doi: 10.13700/j.bh.1001-5965.2015.0656
基金项目: 国家"863"计划(2013AA102301);山东农业大学智能化农业装备研发项目(2015-16);山东农业大学盐碱地改良利用项目(2014-IV-4)
详细信息
    作者简介:

    杨磊 男,硕士,讲师。主要研究方向:GNSS应用。E-mail:yanglei_sdau@163.com;梁勇 男,博士,教授,博士生导师。主要研究方向:数字农业。E-mail:yongl@sdau.edu.cn

    通讯作者:

    梁勇,E-mail:yongl@sdau.edu.cn

  • 中图分类号: P237;S152.7+1

SVRM-assisted soil moisture retrieval method using reflected signal from BeiDou GEO satellites

  • 摘要: 提出了一种支持向量回归机(SVRM)辅助的北斗地球静止轨道(GEO)卫星反射信号土壤湿度反演方法。使用全球导航卫星系统反射信号(GNSS-R)右旋圆极化(RHCP)天线和左旋圆极化(LHCP)天线接收体制进行了地基实验,采集了北斗GEO卫星直射、反射信号原始数据,并从中提取直射、反射信号的相关功率,结合北斗GEO卫星的高度角与方位角信息作为输入,烘干称重法获取的土壤湿度作为输出对使用径向基(RBF)核函数的ε-SVRM进行了训练。独立测试集上的结果表明,SVRM辅助的北斗GEO卫星反射信号土壤湿度反演方法获取的土壤湿度结果与烘干称重法获取的土壤湿度参考值误差控制在3%以内,线性回归方程决定系数为0.897 9,均方根误差RMSE为1.492 6%,证明了该方法具有良好的泛化特性,实际应用中效果良好。

     

  • [1] 刘经南,邵连军,张训械.GNSS-R研究进展及其关键技术[J].武汉大学学报:信息科学版,2007,32(11):955-960. LIU J N,SHAO L J,ZHANG X X.Advances in GNSS-R studies and key technologies[J].Geomatics and Information Science of Wuhan University,2007,32(11):955-960(in Chinese).
    [2] 王迎强,严卫,符养,等.机载GPS反射信号土壤湿度测量技术[J].遥感学报,2009,13(4):670-685. WANG Y Q,YAN W,FU Y,et al.Soil moisture determination of reflected GPS signals from aircraft platform[J].Journal of Remote Sensing,2009,13(4):670-685(in Chinese).
    [3] MASTERS D,AXELRAD P,KATZBERG S.Initial results of land-reflected GPS bistatic radar measurements in SMEX02[J].Remote Sensing of Environment,2004,92(4):507-520.
    [4] 关止,赵凯,宋冬生.利用反射GPS信号遥感土壤湿度[J].地球科学进展,2006,21(7):747-750. GUAN Z,ZHAO K,SONG D S.Measuring soil moisture using reflected GPS signals[J].Advances in Earth Science,2006,21(7):747-750(in Chinese).
    [5] 严颂华,张训械.基于GNSS-R信号的土壤湿度反演研究[J].电波科学学报,2010,25(1):8-13. YAN S H,ZHANG X X.Retrieving soil moisture based on GNSS-R signals[J].Chinese Journal of Radio Science,2010,25(1):8-13(in Chinese).
    [6] 张训械,严颂华.利用GNSS-R反射信号估计土壤湿度[J].全球定位系统,2009(3):1-6. ZHANG X X,YAN S H.Soil moisture estimation using GPS reflected signals[J].GNSS World of China,2009(3):1-6(in Chinese).
    [7] WAN W,LI H,CHEN X W,et al.Preliminary calibration of GPS signals and its effects on soil moisture estimation[J].Acta Meteorologica Sinica,2013,27(2):221-232.
    [8] WAN W,BAI W,ZHAO L,et al.Initial results of China's GNSS-R airborne campaign:Soil moisture retrievals[J].Science Bulletin,2015,60(10):964-971.
    [9] 宋学忠,徐爱功,杨东凯,等.GNSS反射信号在土壤湿度测量中的应用[J].测绘通报,2013(11):61-64. SONG X Z,XU A G,YANG D K,et al.Details of soil moisture measuring utilizing GNSS reflected signals[J].Bulletin of Surveying and Mapping,2013(11):61-64(in Chinese).
    [10] RODRIGUEZ-ALVAREZ N,BOSCH-LLUIS X,CAMPS A,et al.Soil moisture retrieval using GNSS-R techniques:Experimental results over a bare soil field[J].IEEE Transactions on Geoscience & Remote Sensing,2009,47(11):3616-3624.
    [11] VAPNIK V N.The nature of statistical learning theory[M].New York:Springer Verlag Press,1995:133-136.
    [12] MARTíN-NEIRA M.A passive peflectometry and interferometry system (PARIS):Application to ocean altimetry[J].ESA Journal,1993,17:331-355.
    [13] 熊文成.含水含盐土壤介电特性及反演研究[D].北京:中国科学院遥感应用研究所,2005:14-15. XIONG W C.Studies on microwave dielectric behavior of moist salt soil and inversion of the moisture and salt content[D].Beijing:Institute of Remote Sensing Applications Chinese Academy of Sciences,2005:14-15(in Chinese).
    [14] DOBSON M C,ULABY F T,HALLIKAINEN M T,et al.Microwave dielectric behavior of wet soil-Part Ⅱ:Dielectric mixing models[J].IEEE Transactions on Geoscience & Remote Sensing,1985,GE-23(1):35-46.
    [15] HALLIKAINEN M T,ULABY F T,DOBSON M C,et al.Microwave dielectric behavior of wet soil-Part 1:Empirical models and experimental observations[J].IEEE Transactions on Geoscience & Remote Sensing,1985,GE-23(1):25-34.
    [16] TOPP G C,DAVIS J L,ANNAN A P.Electromagnetic determination of soil water content:Measurements in coaxial transmission lines[J].Water Resources Research,1980,16(3):574-582.
    [17] WANG J R,SCHMUGGE T J.An empirical model for the complex dielectric permittivity of soils as a function of water content[J].IEEE Transactions on Geoscience & Remote Sensing,1980,GE-18(4):288-295.
    [18] SMOLA A J,SCHÖLKOPF B.A tutorial on support vector regression[J].Statistics & Computing,2004,14(3):199-222.
    [19] VAPNIK V N.Statistical learning theory[M].New York:Wiley,1998:460-471.
    [20] BISHOP C M.Pattern recognition and machine learning[M].New York:Springer,2006:291-320.
    [21] 杨东凯,张其善.GNSS反射信号处理基础与实践[M].北京:电子工业出版社,2012:92. YANG D K,ZHANG Q S.GNSS reflected signal processing:Fundamentals and applications[M].Beijing:Publishing House of Electronics Industry,2012:92(in Chinese).
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出版历程
  • 收稿日期:  2015-10-12
  • 网络出版日期:  2016-06-20

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