层状介质中异质散射源三维定位逆问题的加权傅里叶变换研究

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为了获得散射介质中异质结构信息,建立了层状均匀介质中含有一个较小的异质球模型,考虑小异质球对光(电磁波)的传播的影响是微扰的,在吸收边界条件下求得漫射方程一级微扰的基本解. 同时考察漫射方程在二维傅里叶空间里形式解的特性,提出一种新颖的加权逆傅里叶变换. 在加权傅里叶变换作用下,模型的表面数据在异质球位置上存在奇异性,结合数据本身的对称性,从而可以确定异质球的三维位置.
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