采用离散植被散射模型分析玉米冠层  

Discrete Scatterer Model for Analyzing Microwave Characteristics of Corn Canopy

作　　者：康高健[1] 张晓娟[1] 方广有[1] 

机构地区：[1]中国科学院电子学研究所

出　　处：《电子与信息学报》2008年第2期343-345,共3页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60371003)

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。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.

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 

分 类 号：TP722.6[自动化与计算机技术—检测技术与自动化装置]