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Calibrated method for discriminating sea surface slicks using RADARSAT-2 co-polarized SAR images

机译:使用RADARSAT-2共极化SAR图像识别海面浮油的校准方法

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A new polarimetric parameter based on the model for normalized radar cross section, containing resonant and nonresonant scatterings from the sea surface (Kudryavtsev et. al., 2003), is proposed for discrimination between mineral oil slicks vs. natural slicks. A possible efficiency of this parameter in operating applications was tested on four RADARSAT-2 co-polarization SAR images obtained for the annual oil-on-water exercises in the North Sea in 2011, 2012, and for the Oil Stones oil production site in the Caspian Sea, containing a priori known mineral oil (crude oil, emulsions), and plant oil (which modeled natural slick) slicks. The images span incidence angles from 30° to 38° degrees and the wind speed from 2 to 10 m/s. The parameter has shown to be almost independent on the incidence angle and wind speed for the tested data providing at the same time a desired discrimination between mineral oil and plant oil slicks.
机译:提出了一种基于归一化雷达横截面模型的新极化参数,其中包含海面的共振和非共振散射(Kudryavtsev等人,2003年),用于区分矿物油浮油与天然油浮油。在2011年,2012年北海的年度水上油演习以及在北卡罗来纳州油石的石油生产基地获得的四个RADARSAT-2共极化SAR图像上,测试了该参数在操作应用中的可能效率。里海,含有先验的矿物油(原油,乳液)和植物油(模拟天然浮油)浮油。图像的入射角从30°到38°,风速从2到10 m / s。对于测试数据,该参数显示出几乎与入射角和风速无关,同时提供了矿物油和植物油浮油之间的所需区分。

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