论文标题
回顾灭绝系数在雷达遥感中的作用
Reviewing the role of the extinction coefficient in radar remote sensing
论文作者
论文摘要
该报告重新讨论了灭绝系数在基于雷达反向散射的模型中的作用，以进行森林监测。对处理此问题的许多作品的回顾表明，灭绝值的多样性不清楚其对传感器频率和森林类型的依赖性。此外，采用直接从RVOG公式得出的反向散射模型来分析反向散射水平的饱和度作为植被高度的函数，并且在文献中先前的作品中建议的反向散射趋势的降低趋势降低了。根据这项分析，应该认为，应专门针对灭绝系数的专门研究的进一步研究。
This report revisits the role of the extinction coefficient in radar backscattering-based models for forest monitoring. A review of a number of works dealing with this issue has revealed a diversity of extinction values being unclear its dependence on the sensor frequency and the forest type. In addition, a backscattering model directly derived from the RVoG formulation is employed to analyse the saturation of backscattering level as a function of vegetation height and the presence of a decreasing trend of backscatter beyond the saturation point as suggested in previous works in the literature. According to this analysis it seems reasonable to think that further research specially focused on dedicated experimental measurements of the extinction coefficient should be carried out.
