中文摘要：

首先联合利用森林生长模型和分形树模型系统建立白桦纯林的空间虚拟场景并记录场景中每个散射体的方位和坐标信息，然后将此信息输入到森林植被雷达相干散射模型中进行后向散射模拟，最后分析不同的白桦结构分布对雷达后向散射的影响，以便对白桦纯林的雷达图像进行定量分析。

英文摘要：

A three-dimensional visual forest scene is simulated using forest growth model ZELIG and a fractal-generated tree model L-systems. The radar coherent backscatter model takes the scene as input and simulates the coherent radar backscattering signature. The impact of the distribution of birch in forest stand on radar backscatter is analyzed, which can improve the understanding the SAR interferometric data quantitatively.