On the degree of polarization for SAR sea oil slick observation
On the degree of polarization for SAR sea oil slick observation
复制标题
DOI：
10.1016/j.isprsjprs.2012.12.007
复制
发表时间：
2013-04-01
影响因子：
12.7
通讯作者：
Migliaccio, Maurizio
中科院分区：
文献类型：
--
作者：
Nunziata, Ferdinando;Gambardella, Attilio;Migliaccio, Maurizio
提出了一个极化模型，将极化度（DoP）与中低风条件下有油膜和无油膜的海面散射联系起来。DoP，直接从穆勒散射矩阵测量，被证明是一个可靠的措施偏离布拉格散射的现象，在低到中等的风条件下，发生浮油时存在。根据这一理论基础，一个简单的滤波器的开发，以观察四极化全分辨率合成孔径雷达（SAR）数据中的浮油。在一组有意义的四极化单视复合体（SLC）C波段雷达卫星-2合成孔径雷达数据上进行的实验，其中既有众所周知的浮油和弱阻尼外观相似的地方，从业务角度证明了模型的合理性及其有效性。(C)2013年国际摄影测量与遥感学会（ISRS）由Elsevier B. V.发布保留所有权利。
A polarimetric model to relate the degree of polarization, DoP, to the sea surface scattering with and without oil slicks, under low-to-moderate wind conditions, is proposed. DoP, measured directly from the Mueller scattering matrix, is shown to be a reliable measure of the departure from Bragg scattering; a phenomenon that, under low-to-moderate wind conditions, occurs when an oil slick is present. Following this theoretical rationale, a simple filter is developed to observe oil slicks in quad-polarimetric full-resolution Synthetic Aperture Radar (SAR) data. Experiments, undertaken on a meaningful set of quad-polarization Single Look Complex (SLC) C-band RADARSAT-2 SAR data, where both well-known oil slicks and a weak-damping look-alike are in place, demonstrate the soundness of the model and its effectiveness from an operational viewpoint. (C) 2013 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS) Published by Elsevier B.V. All rights reserved.