| 采用离散植被散射模型分析玉米冠层 |
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| 引用本文： | 康高健, 张晓娟, 方广有. 采用离散植被散射模型分析玉米冠层[J]. 电子与信息学报, 2008, 30(2): 343-345. doi: 10.3724/SP.J.1146.2006.01103 |
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| 作者姓名： | 康高健 张晓娟 方广有 |
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| 作者单位： | 1. 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
2. 中国科学院电子学研究所,北京,100080 |
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| 摘 要： | 基于修正的Born近似解得到离散植被散射模型，说明该模型中的植被散射机理，给出圆柱、椭圆片的散射幅度函数，以及植被、土壤的介电常数模型；在L波段下模型应用于玉米植被，得出HH，VV极化情况下的后向散射系数，同时与AIRSAR实验获得的数据比较，验证了同极化HH情况下模型的准确性。
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| 关 键 词： | 离散散射模型 修正Born近似 散射幅度函数 后向散射系数 |
| 文章编号： | 1009-5896（2008）02-0343-03 |
| 收稿时间： | 2006-07-24 |
| 修稿时间： | 2006-12-28 |
Discrete Scatterer Model for Analyzing Microwave Characteristics of Corn Canopy |
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| Kang Gao-jian, Zhang Xiao-juan, Fang Guang-you. Discrete Scatterer Model for Analyzing Microwave Characteristics of Corn Canopy[J]. Journal of Electronics & Information Technology, 2008, 30(2): 343-345. doi: 10.3724/SP.J.1146.2006.01103 |
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| Authors: | Kang Gao-jian Zhang Xiao-juan Fang Guang-you |
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| Affiliation: | Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China; Graduate University of Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Discrete vegetation scattering model based no distorted Born approximation solution is derived. The backscattering mechanism is illustrated. Scattering amplitude functions and model for calculating permittivity are presented. Comparisons between model predictions and field measurements on radar backscattering coefficients for corn canopy showed a reasonable good agreement at L-band for HH,VV polarizations. |
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| Keywords: | Discrete scatterer model Distorted Born approximation Amplitude function Backscattering coefficient |
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