采用离散植被散射模型分析玉米冠层

康高健; 张晓娟; 方广有

doi:10.3724/SP.J.1146.2006.01103

采用离散植被散射模型分析玉米冠层

doi: 10.3724/SP.J.1146.2006.01103

康高健^{①②;张晓娟},
张晓娟,
方广有

基金项目:

国家自然科学基金(60371003)资助课题

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出版历程
- 收稿日期: 2006-07-24
- 修回日期: 2006-12-28
- 刊出日期: 2008-02-19

Discrete Scatterer Model for Analyzing Microwave Characteristics of Corn Canopy

摘要

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。
- 离散散射模型; 修正Born近似; 散射幅度函数; 后向散射系数
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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