【摘要】 研究使用计算机分形建模方法(L系统)建立一系列具有不同林分高度和密度的阔叶森林(白桦林)场景。然后使用基于扭曲玻恩近似原理发展起来的雷达相干散射模型模拟上述森林场景的后向散射场信息,并提取相应的森林植被散射相位中心高度。进而分析不同雷达系统参数(极化方式,雷达波长,入射角)及森林结构参数(林分高度,林分密度)对散射相位中心高度的影响,为进一步利用相干散射模型进行森林参数定量反演奠定基础。更多还原

【Abstract】 A coherent radar backscatter model based on Distorted Born Approximation theory was used to simulate the backscattering field and the height of scattering phase center of various broad-leaved forest(birch) plots with different height and density,which were generated with L-system.The impacts of the radar system parameters(polarization,wavelength,incidence angle) and forest structural parameters(forest stand height and density) on the height of scattering phase center were then investigated to help lay a foundation for the further research on forest parameters inversion with this model.更多还原