摘要
森林高度是自然资源调查过程中一个重要的林业指标。近年来,陆续发展的干涉SAR(InSAR)、极化干涉SAR(PolInSAR)技术,已被视为大范围森林高度反演的最优候选技术之一。TanDEM-X InSAR数据因其不受时间去相干的影响且拥有合适的干涉基线配置,在大范围的森林高度反演中具有重要应用潜质。首先系统总结了目前基于TanDEM-X干涉SAR数据反演森林高度的模型和算法,并在此基础之上,对TanDEM-X反演森林高度的问题和发展趋势进行分析,旨在为大范围森林高度反演提供参考。
Forest height is an important forestry factor in the natural resource investigation.The successively developed SAR interferometric (InSAR) and polarimetric SAR interferometric (PolInSAR) technologies have been regarded as one of the best candidate technologies for forest height retrieval in recent years.Since the temporal decorrelation in TanDEM-X InSAR data can be suppressed better and the baseline configuration was more suitable,it showed important potential in large-scale forest height retrieval.This paper systematically summarizes the current forest height inversion models and algorithms based on TanDEM-X InSAR data,and analyzes the problems and development trends,aiming to provide a reference for forest heights inversion at a wide area.
作者
张涛
朱建军
付海强
汪长城
谢雁洲
ZHANG Tao;ZHU Jianjun;FU Haiqiang;WANG Changcheng;XIE Yanzhou(School of Geosciences and Info-physics,Central South University,Changsha 410083,China)
出处
《地理信息世界》
2020年第6期48-56,共9页
Geomatics World
基金
国家自然科学基金项目(41820104005,41531068,41904004)资助。
