非均勻損耗介質(zhì)體電磁逆散射的非相關(guān)照射法
UNRELATED ILLUMINATION METHOD FOR ELECTROMAGNETIC INVERSE SCATTERING OF INHOMOGENEOUS LOSSY DIELECTRIC BODIES
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摘要: 本文提出一種恢復(fù)非均勻損耗介質(zhì)體復(fù)介電常數(shù)的新方法。它基于這樣一個(gè)原則,即當(dāng)介質(zhì)體被一組非相關(guān)入射波照射?？梢詮钠渖⑸鋱鲋蝎@得充分的有關(guān)介質(zhì)體的信息。本文給出了有關(guān)的公式和數(shù)值模擬結(jié)果。準(zhǔn)確的恢復(fù)數(shù)據(jù)說明這種方法在電磁逆散射和微波成象的研究中很有潛力。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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D. K. Ghodgaonkar, Om P. Gandhi, M. J. Hagmann, IEEE Trans. on MTT, MTT-31(1983)6, 442-446.[2]M. M. Ney, A. M. Smith, S. S. Stuchly, IEEE Trans. on MI, MI-3(1984)4, 155-162.[3]M. J. Hagmann, R. L. Levin, IEEE Trans. on AP, AP-38(1990)1, 99-106.[4]J. Wang, T. Takagi, Electron. Let., 27(1991)2, 112-113.[5]M. Slaney, A. C. Kak, L. E. Larsen, IEEE Trans. on MTT, MTT-32(1984)8, 860-874.[6]W. Tabbara et al.,Inverse Problems, 4(1988)2, 305-331.[7]A.Broquetas et al., IEEE Trans. on MTT, MTT-39(1991)5, 836-844.[8]J. H. Richmond. IEEE Trans. on AP, AP-13(1965)5, 334-341. -
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