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基于分形结构的植被高阶相干散射模型研究

饶丽婷 张晓娟 王友成 方广有

饶丽婷, 张晓娟, 王友成, 方广有. 基于分形结构的植被高阶相干散射模型研究[J]. 电子与信息学报, 2016, 38(10): 2502-2508. doi: 10.11999/JEIT160095
引用本文: 饶丽婷, 张晓娟, 王友成, 方广有. 基于分形结构的植被高阶相干散射模型研究[J]. 电子与信息学报, 2016, 38(10): 2502-2508. doi: 10.11999/JEIT160095
RAO Liting, ZHANG Xiaojuan, WANG Youcheng, FANG Guangyou. High-order Coherent Scattering Model for Vegetation with Fractal Structures[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2502-2508. doi: 10.11999/JEIT160095
Citation: RAO Liting, ZHANG Xiaojuan, WANG Youcheng, FANG Guangyou. High-order Coherent Scattering Model for Vegetation with Fractal Structures[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2502-2508. doi: 10.11999/JEIT160095

基于分形结构的植被高阶相干散射模型研究

doi: 10.11999/JEIT160095
基金项目: 

国家自然科学基金(61172017)

High-order Coherent Scattering Model for Vegetation with Fractal Structures

Funds: 

The National Natural Science Foundation of China (61172017)

  • 摘要: 电磁波低频入射情况下,植被中散射体独立不相关的假设无效,此时应考虑散射体之间的相干效应以及近场互作用。该文提出一种基于分形结构的植被高阶相干散射模型,该模型利用分形理论生成近乎真实植被的3维几何结构,根据每个散射体的空间位置信息考虑了相干效应,应用互易定理计算了相邻散射体间高阶互作用,结合非相干的分层模型中后向散射机制划分方式,给出了各项散射机制的表达式。与机载合成孔径雷达实验数据对比,验证了模型的准确性。在针叶林仿真参数下,分析了各项散射机制对总散射效应的贡献与入射频率、角度、植被结构的关系,结果表明,低频入射条件下,稀疏植被散射模型可进一步简化从而应用于参数反演中。
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出版历程
  • 收稿日期:  2016-01-21
  • 修回日期:  2016-07-01
  • 刊出日期:  2016-10-19

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