基于非独立模型的相邻树干散射特性分析
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Adjacent Tree Trunks Scattering Characteristics Analysis Based on the Non-independent Model
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    摘要:

    由于树干是有耗媒质, 所以其散射特性极为复杂, 而在较为稠密的丛林中, 相邻树干之间更会产生二次散射, 这时研究相邻树干的散射特性对目标的识别与跟踪有重要意义, 因此本文构建非独立模型以研究树干的散射特性. 即用有限长介质圆柱模拟实际树干, 建立相邻两树干的散射模型, 通过计算其电磁散射特性研究两树干之间的二次散射; 文中介绍了仿真时的激励源, 边界条件的选取及建模和仿真过程; 给出了两树干不同距离下散射波幅值的变化, 入射波不同角度入射引起的RCS起伏, 并跟独立树干的幅值及RCS变化进行对比, 得到感

    Abstract:

    In this paper, the non-independent model is construted to study the scattering characteristic of the adjacent tree, which is particularly well adapted to the two tree trunks’ characteristic because of the complexity of the scatter. And in the dence forest, the characteristic of the adjacent trees is more important. The finite-length multi-layer dielectric cylinder was used to model the trunk,and the electromagnetic scattering model for two adjacent trunks was analyzed. This paper presented the excitation source, the ABC, the modeling and simulation’s process, then it provided the amplitude’s change according to the different distance between the two adjacent trunks and the RCS fluctuation because of the different incident angle. At last, the comparison between the two trunks and the single trunk was gived.

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引用本文

殷小敏,陈华杰.基于非独立模型的相邻树干散射特性分析.计算机系统应用,2013,22(2):161-164,185

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  • 收稿日期:2012-06-22
  • 最后修改日期:2012-08-14
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