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首页> 外文会议>Living planet symposium >ON THE EFFECT OF IMAGING GEOMETRY ON MULTIPOLARIZATION SAR FEATURES FOR OIL SPILL OBSERVATION
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ON THE EFFECT OF IMAGING GEOMETRY ON MULTIPOLARIZATION SAR FEATURES FOR OIL SPILL OBSERVATION

机译：成像几何形状对漏油观测的多极化SAR功能的影响

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摘要

Polarimetric SAR is increasingly used for oil spill observation. In order to develop reliable methods for oil spill detection and characterization, the sensitivity of these measurements to the imaging geometry, including incidence angle and look direction relative to the wind, must be investigated. In this paper, we study the effects of these parameters on L-band SAR data collected with the UAVSAR instrument over experimental oil spills. The relative look direction is found to have a larger effect on the slick detectability than the incidence angle, and the detectability is better in the downwind direction compared to upwind. The features showing the best slick detectability in the conditions investigated here are the VV intensity, HV intensity, the geometric intensity and the polarization difference. The latter feature shows low dependency on imaging geometry.
机译：Polarimetric SAR越来越多地用于漏油观察。为了开发可靠的溢油检测和表征方法，必须研究这些测量对成像几何形状的敏感性，包括相对于风的入射角和视图方向。在本文中，我们研究了这些参数对在实验漏油中与无人机仪器收集的L波段SAR数据的影响。发现相对看方向对比入射角的光滑可检测性具有更大的效果，并且与挤压相比，下行方向上的可检测性更好。在此处研究的条件下，示出了最佳光滑可检测性的特征是VV强度，HV强度，几何强度和偏振差。后一种特征显示了对成像几何体的低依赖性。

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