后向散射系数 meaning in Chinese
backscattering coefficient
Examples
- Especially , the second part of the computing the backscattered field is given . 5
在利用kirchhoff远场近似方程计算后向散射系数时,给出了计算该公式第二部分的方法。 - 4 . based on the theory of kirchhoff approximating and the model of franceschetti facet field simulating , an algorithm for the computing the facet backscatter coefficients is presented
4 .基于kirchhoff近似理论和franceschetti地面场景仿真模型,实现了一种根据小平面单元与sar之间的几何关系计算小平面单元后向散射系数的算法。 - Based on the theory of kirchhoff approach and facet , the algorithm of computing the facets " backscatter coefficients is discussed . especially a method of computing part of the backscattered field is advanced
基于kirchhoff近似理论和franceschetti的地面场景仿真模型，本文实现了根据小平面单元与sar之间的几何关系计算小平面单元后向散射系数的算法。 - We , then , parameterized a semi - empirical model for the different land surface cover types . this semi - empirical model was applied to minimize the effects of the vegetation volume scattering and extinction in radar measurements
此外，目前星载合成孔径雷达如ers - 1 2 、 radarsat等均为单一频率、单一极化的雷达，无法从得到的单参数雷达后向散射系数中直接提取地表土壤水分信息。 - This technique is mainly involved two steps : 1 ) vegetation effects correction : we used ndvi ( normalized difference vegetation index ) derived from tm and avhrr measurements for spatial and temporal variations of vegetation covers at different scales
但由于电磁波与地表相互作用的复杂性，雷达后向散射系数除受地表介电常数(土壤水分)影响外，还受到地表粗糙度、土壤类型、植被覆盖以及雷达入射角、频率、极化等多种因素的影响。