极化干涉SAR森林树高提取算法的对比分析

在对极化干涉SAR森林树高反演的DEM差值算法、相干相位-幅度综合反演算法进行分析的基础上,对基于极化干涉相干优化方法的改进算法进行了探讨。利用黑龙江大兴安岭地区的一对ALOS全极化干涉SAR数据进行实验,并对比分析各算法的反演结果。结果表明,在使用改进的算法进行森林树高反演时可以获取精度较高的反演结果,并且在一定程度上提高了森林树高反演的稳定性,为森林树高反演工作的业务化运行提供一定的依据。

Comparative Analysis of Forest Height Inversion Based on Polarimetric SAR Interferometric

Discussed the DEM differencing and the fusion algorithm combined with coherence amplitude algorithm, then analyses the improved algorithm based on polarization interference coherent optimization.Used a pair of ALOS full polarization interference SAR data of Daxing’ anling Prefecture in Heilongjiang province to compare and analyze the results of the discussed inversion algorithms. Results show that high stability and more precision and results of forest tree height inversion can be obtained when using the improved algorithm.Thus, provided certain basis for forest height inversion.