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全极化干涉SAR反演树高的几种算法研究
引用本文:温若橙,苏军明,伍雅晴. 全极化干涉SAR反演树高的几种算法研究[J]. 测绘与空间地理信息, 2017, 0(2): 212-214. DOI: 10.3969/j.issn.1672-5867.2017.02.066
作者姓名:温若橙  苏军明  伍雅晴
作者单位:中南大学地球科学与信息物理学院,湖南长沙,410083
摘    要:极化干涉SAR因其有对植被散射体的空间分布和高度分布的敏感性,同时具有对植被散射体的形状和方向的敏感性,近年来成为反演树高的研究热门。目前,反演树高常用的算法包括相位与幅度联合反演法、六维非线性迭代法以及三阶段算法。本文通过德国空间局(DLR)提供的boi SAR2008P波段的数据,分别对这些算法进行了树高反演实验,结果表明:三阶段算法和六维非线性迭代法反演结果明显优于相位与幅度联合反演法;六维非线性迭代法结果优于三阶段算法,但计算量巨大且依赖于初始值。

关 键 词:PolInSAR  树高反演  相位与幅度联合反演法  六维非线性迭代法  三阶段算法

Research on Several Vegetation Height Inversion Algorithms from Polarimetric Interferometric SAR
WEN Ruo-cheng,SU Jun-ming,WU Ya-qing. Research on Several Vegetation Height Inversion Algorithms from Polarimetric Interferometric SAR[J]. Geomatics & Spatial Information Technology, 2017, 0(2): 212-214. DOI: 10.3969/j.issn.1672-5867.2017.02.066
Authors:WEN Ruo-cheng  SU Jun-ming  WU Ya-qing
Abstract:As polarimetric interferometric SAR is not only sensitive to the spatial distribution and height distribution but also to the shape and direction of the vegetation,so it can be hot research for vegetation height inversion.Now there are three algorithms using in vegetation height inversion include Phase and amplitude of joint inversion,Six dimensional nonlinear iteration and Three-stage inversion.To compare these algorithms,this paper experiment with the data providing by DLR boiSAR2008 P-band to invert the height by these algorithms.The results show that the six dimensional nonlinear iteration and three algorithms are much better than Phase and amplitude of joint inversion.The Six dimensional nonlinear iteration is better than three algorithms,but it need Large amount of calculation and depend on the initial values.
Keywords:PolInSAR  vegetation height inversion  phase and amplitude of joint inversion  six dimensional nonlinear iteration  three-stage inversion
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