Physically Based Polarimetric Volumetric Scattering From Cylindrically Dominated Vegetation Canopies
Physically Based Polarimetric Volumetric Scattering From Cylindrically Dominated Vegetation Canopies
复制标题
来自圆柱形植被冠层的基于物理的偏振体积散射
DOI:
10.1109/tgrs.2018.2867861
复制
发表时间:
2019-03
影响因子:
8.2
通讯作者:
Li Zengyuan
中科院分区:
文献类型:
--
作者:
Du Yang;Yang Chao;Liu Qinhuo;Li Zengyuan
To advance the utility of polarimetric synthetic aperture radar observations for extracting biophysical information about vegetation canopies, it is important to develop good understanding of the scattering mechanisms that give rise to the polarimetric scattering response and to apply it toward the development of effective decomposition models of the polarimetric covariance matrices. In this paper, we introduce a more rigorous approach to characterizing the volume scattering component of the three-component scattering model developed by Freeman and Durden. The improved rigor has two aspects: 1) the use of a T-matrix model for computing the polarimetric scattering by an inclined dielectric cylinder and 2) the incorporation of the change in local incidence angle as a function of the orientation of the vegetation cylinders. The improvements address some of the current limitations of the Freeman-Durden model. This paper also provides a sensitivity analysis of the various components of the covariance matrix as a function of several physical parameters including cylinder size, its dielectric constant, and the orientation distribution of cylinders. Such an analysis is a precursor to the development of improved inversion algorithms.
登录
查看更多内容
DOI:
10.2139/ssrn.3649241
发表时间:
2019-09
期刊:
DecisionSciRN: Heuristics (Sub-Topic)
影响因子:
--
作者:
Todd Davies
通讯作者:
Todd Davies
影响因子:
8.2
作者:
Freeman, A;Durden, SL
通讯作者:
Durden, SL
DOI:
10.1109/tgrs.2012.2212446
发表时间:
2013-05-01
影响因子:
8.2
作者:
Singh, Gulab;Yamaguchi, Yoshio;Park, Sang-Eun
通讯作者:
Park, Sang-Eun
影响因子:
8.2
作者:
S. Durden;J. V. Zyl;H. Zebker
通讯作者:
S. Durden;J. V. Zyl;H. Zebker
影响因子:
4.8
作者:
W. An;Chunhua Xie;Xinzhe Yuan;Yi Cui;Jian Yang
通讯作者:
W. An;Chunhua Xie;Xinzhe Yuan;Yi Cui;Jian Yang