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GNSS-R海面风速反演技术研究

刘原华 何孟然 牛新亮

刘原华, 何孟然, 牛新亮. GNSS-R海面风速反演技术研究[J]. 全球定位系统, 2020, 45(2): 55-59. doi: DOI:10.13442/j.gnss.1008-9268.2020.02.009
引用本文: 刘原华, 何孟然, 牛新亮. GNSS-R海面风速反演技术研究[J]. 全球定位系统, 2020, 45(2): 55-59. doi: DOI:10.13442/j.gnss.1008-9268.2020.02.009
LIU Yuanhua, HE Mengran, NIU Xinliang. Research on GNSS-R sea surface wind field Information Inversion technology[J]. GNSS World of China, 2020, 45(2): 55-59. doi: DOI:10.13442/j.gnss.1008-9268.2020.02.009
Citation: LIU Yuanhua, HE Mengran, NIU Xinliang. Research on GNSS-R sea surface wind field Information Inversion technology[J]. GNSS World of China, 2020, 45(2): 55-59. doi: DOI:10.13442/j.gnss.1008-9268.2020.02.009

GNSS-R海面风速反演技术研究

doi: DOI:10.13442/j.gnss.1008-9268.2020.02.009
详细信息
    作者简介:

    刘原华 (1983—),女,博士,副教授,研究方向为卫星通信、导航和信道编码.

    通讯作者:

    何孟然 E-mail:hemengran904@163.com

Research on GNSS-R sea surface wind field Information Inversion technology

  • 摘要: 利用全球卫星导航系统反射信号技术(GNSS-R)反演海面风速时,得到的双基雷达横截面积由于几何因素的影响不能直接用来反演风速. 针对这一问题,对功率校准后的数据进行几何校正,在分析全球卫星导航系统(GNSS) 海面反射信号特征的基础上,分析了几何因素对风速反演的影响,对双基雷达横截面积和有效散射区域进行校正,得到相应反射点的反射信号功率;最后对所求得的反射信号参数进行仿真验证. 实验结果表明,海面风速反演的均方根误差为2.61 m/s,反演风速与真实风速的相关系数为0.57,校正后的归一化双基雷达横截面积能够有效地反演海面风速.

     

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  • 刊出日期:  2020-04-15

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