摘要
本文提出任意形状三维有耗生物体局部逆散射的矩阵摄动理论。当一个正常生物体的内部介质特性发生局部变化时，本文获得了变化散射场与介质特性的关系，进而导出了逆散射问题的各阶矩阵摄动解。具体的重建实例验证了上述理论的有效性。
A partial inverse scattertng method for a three-dimensional, arbitrarily shaped heterogeneous biological body is presented by using a matrix perturbation theory. When small perturbations in the dielectric characteristics of an a-priori known biological body are occured,a relation between the varied scattering fields and the dielectric characteristics is derived. Furthermore, the perturbation solutions for inverse scattering problem are investigated. Reconstruction examples are given to show the validity of the method.
出处
《通信学报》
EI
CSCD
北大核心
1994年第2期54-59,共6页
Journal on Communications
关键词
有耗生物体
逆散射
矩阵摄动理论
three-dimensional lossy biological bodies
partial inverse scattering method
matrix perturbation theory
dielectric characteristics
