摘要
本文采用一层具有粗糙界面的连续随机介质模型，计算双站散射系数和后向散射系数，由互易性定理计算热发射率。数值模拟了植被在整个生长过程中后向散射和热发射的变化，以及它们的相关特征。理论结果与几种植被的主被动遥感实验数据作了比较和讨论，阐明了微波主被动遥感的一些相关的数值特征。
Employing the model of a layer of continuous random medium with anunderlying rough surface, the bistatic scattering and back-scattering coefficients arecalculated. By using the reciprocity, the emissivity is also calculated. Numerical results simulate the change of the backscattering and emissivity of the vegetationcanopies and their correlation during whole growth period. Theoretical results arecompared with the measurements of active and passive remote sensing of severalvegetation canopies. The correlated characteristics of microwave active and passiveremote sensing are discussed.
出处
《环境遥感》
CSCD
1996年第1期38-45,共8页
基金
国家自然科学基金
中国科学院长春净月潭遥感开放实验站基金
上海应用物理研究中心资助
关键词
相关性
数值模拟
实验比较
遥感
微波遥感
correlation of active and passive, simulation, comparison with data
