基于极化相干层析技术的森林垂直剖面重建研究

Reconstruction of Forest Vertical Profile Based on Polarization Coherence Tomography

极化相干层析技术作为极化干涉合成孔径雷达的一个重要应用方向,在林业遥感方面应用广泛。在分析极化相干层析技术原理的基础上,基于仿真数据从10 m,18 m和22 m三种森林高度以及Deciduous,Pine(2)和Hedge三种树型分别对极化相干层析技术构建森林垂直结构剖面的精度进行了验证,研究结果表明,该方法能够有效构建垂直结构剖面,森林高度和树型对估算结果影响较小,该方法对不同树型和不同高度均具有良好的适应性。

As an important application of polarization interferometric synthetic aperture radar, polarization coherence tomography tech- nique is widely used in forest remote sensing. Based on the analysis of polarization coherence tomography principle, this paper validated the vertical profile accuracy estimated by this method with simulated data respectively from 10 m, 18 m and 22 m height and Deciduous, Pine （2）, and Hedge tree species, the results show that this method can effectively reconstruct vertical structure profiles, tree species and tree height have little effect on the estimates, this method has a good adaptability to different tree heights and tree species.