裸地散射特性分析

本文详细地研究了裸地（农用耕地）的散射特性。根据实验现象提出了新的散射系数与入射角关系模型，与实验数据获得了很好的吻合性。通过分析裸地散射系数的雷达参数（入射角、极化、频率）和地面参数（粗糙度、土壤湿度）的响应特性，得到微波遥感土壤湿度时的最佳工作参数。

An Analysis of the Backscattering from Bare Soil

The backscattering properties of bare soil are analyzed in this paper. A new empirical model relating backscattering coefficient to incidence angle is provided. The model agrees with experimental results. From the analysis of the dependence of backscattering coefficient on the radar parameters (frequency,incidence angle and polarization) and ground parameters (the roughness of ground surface and moisture of soil), the optimum radar parameters for microwave remote sensing soil moisture are obtained.