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圆柱型油罐SAR图像的多径散射特征和几何参数提取

Keywords: 油罐,SAR图像,多径散射,几何参数提取。

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Abstract:

结合多径散射理论和雷达成像原理,针对圆柱型固定顶油罐和浮动顶油罐的SAR图像的多径散射提出了一种预测模型,该预测模型建立了多径散射机制引起的图像上的近似聚焦位置、强度与油罐、雷达相关参数的关系。同时,结合仿真实验和Terra-SAR图像验证了该模型的有效性,分析了油罐目标的多径特征,并针对Terra-SAR图像利用基于模型的方法有效提取了油罐目标的几何参.结果和分析表明,该方法比传统的方法在精度、稳定性上均有所提高。

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