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- W2976988881 abstract "将GNSS-R/IR技术的应用领域拓展到地表冻融状态的监测中，本文利用冻融土混合介质介电常数模型计算土壤介电常数，采用双站全极化相干反射率模型和随机粗糙面散射模型，分别计算了经冻融土反射的GPS相干反射量的镜像反射率，以及GPS非相干反射分量的漫散射特性。模拟分析了冻融转换时，GPS多路径信息（GNSS-IR）以及包含漫散射信号的延迟多普勒图（GNSS-R）的变化特征。理论研究表明冻融转换过程中，地表介电常数的变化导致GPS多路径信息和延迟多普勒图的明显变化。本文从散射机理上揭示了利用GNSS-R和GNSS-IR遥感进行地表冻融特性监测的理论依据。" @default.
- W2976988881 created "2019-10-03" @default.
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- W2976988881 date "2019-08-20" @default.
- W2976988881 modified "2023-09-24" @default.
- W2976988881 title "GNSS-R/IR监测地表冻融状态对延迟多普勒波形和多路径数据影响分析" @default.
- W2976988881 doi "https://doi.org/10.11947/j.agcs.2019.20180038" @default.
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