| 双频多极化SAR测量深层土壤湿度 |
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| 引用本文： | 张晓娟,张文吉,路晓荣,康高健,方广有.双频多极化SAR测量深层土壤湿度[J].电子与信息学报,2007,29(11):2711-2714. |
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| 作者姓名： | 张晓娟 张文吉 路晓荣 康高健 方广有 |
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| 作者单位： | 中国科学院电子学研究所,北京,100080;中国科学院电子学研究所,北京,100080;中国科学院研究生院,北京,100039 |
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| 摘 要： | 该文提出了利用由矢量网络分析仪构造的VHF/UHF双频、多极化合成孔径雷达(SAR)测量深层土壤湿度的方法；给出植被后向散射机理、深层土壤后向散射机理，土壤介电常数模型；对裸露土壤深层后向散射、土壤介电特性给出仿真结果。通过已知的单层土壤(双层介质粗糙面模型)的后向散射验证了模型的正确性。
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| 关 键 词： | 合成孔径雷达 土壤湿度 UHF VHF 后向散射系数 |
| 文章编号： | 1009-5896（2007）11-2711-04 |
| 收稿时间： | 2006-3-31 |
| 修稿时间： | 2006-03-31 |
Dual-Frequency Synthetic Aperture Radar for Deep Soil Moisture Estimation |
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| Zhang Xiao-juan,Zhang Wen-ji,Lu Xiao-rong,Kang Gao-jian,Fang Guang-you.Dual-Frequency Synthetic Aperture Radar for Deep Soil Moisture Estimation[J].Journal of Electronics & Information Technology,2007,29(11):2711-2714. |
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| Authors: | Zhang Xiao-juan Zhang Wen-ji Lu Xiao-rong Kang Gao-jian Fang Guang-you |
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| Institution: | 1. Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China;2.Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | The method of measuring deep soil moisture by VHF/UHF dual frequency multiple polarization Synthetic Aperture Radar(SAR) consisting of vector network analyzer is proposed. The backscattering mechanism of vegetation and soil at depth,dielectric properties of soil are presented. The simulation results of the backscattering of multilayered soil,dielectric properties of soil are given and the models are validated by special case of single layered soil. |
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| Keywords: | SAR Soil moisture UHF VHF Backscattering coefficient |
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