非均匀损耗介质体电磁逆散射的非相关照射法
UNRELATED ILLUMINATION METHOD FOR ELECTROMAGNETIC INVERSE SCATTERING OF INHOMOGENEOUS LOSSY DIELECTRIC BODIES
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摘要: 本文提出一种恢复非均匀损耗介质体复介电常数的新方法。它基于这样一个原则,即当介质体被一组非相关入射波照射。可以从其散射场中获得充分的有关介质体的信息。本文给出了有关的公式和数值模拟结果。准确的恢复数据说明这种方法在电磁逆散射和微波成象的研究中很有潜力。Abstract: A novel method proposed in the paper is aimed at reconstructing thecomplex permittivities of inhomogeneous lossy dielectric bodies. The method is based on such a principle that sufficient informations of a dielectric body may be obtained from the scattered fields when the body is illuminated by a group of unrelated incident fields. The formula derivations and the simulation results are presented, and the accurate reconstructed results show that the method proposed has great potentialities in developing the electromagnetic inverse sca- ttering and the microwave imaging.
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