Polarimetric entropy of the ocean surface with a two-scale scattering model

被引：2
|
作者：
Wang Wenguang [1 ]
Li Haiyan [2 ,3 ]
Song Xingai [4 ]
机构：
[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
[2] Chinese Acad Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] State Ocean Adm, Natl Satellite Ocean Applicat Serv, Beijing 100081, Peoples R China
来源：
ACTA OCEANOLOGICA SINICA | 2014年 / 33卷 / 01期
基金：
中国国家自然科学基金;
关键词：
entropy; ocean wave spectrum; polarimetric synthetic aperture radar; Polsar; two-scale scattering model; contrast enhancement; RADAR;
D O I：
10.1007/s13131-014-0423-8
中图分类号：
P7 [海洋学];
学科分类号：
0707 ;
摘要：
The relationships among an ocean wave spectrum, a fully polarimetric coherence matrix, and radar parameters are deduced with an electromagnetic wave theory Furthermore, the relationship between the polarimetric entropy and ocean wave spectrum is established based on the definition of entropy and a two-scale scattering model of the ocean surface. It is the first time that the polarimetric entropy of the ocean surface is presented in theory Meanwhile, the relationships among the fully polarimetric entropy and the parameters related to radar and ocean are discussed. The study is the basis of further monitoring targets on the ocean surface and deriving oceanic information with the entropy from the ocean surface. The contrast enhancement between human-made targets and the ocean surface with the entropy is presented with quad-pol airborne synthetic aperture radar (AIRSAR) data.
引用
收藏
页码：102 / 108
页数：7
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