任意連續(xù)媒質(zhì)層介電常數(shù)剖面的分域重建
RECONSTRUCTION OF THE PERMITTIVITY PROFILES OF ARBITRARILY CONTINUOUS MEDIUM IN LAYERED REGIONS
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摘要: 本文應(yīng)用網(wǎng)絡(luò)原理導(dǎo)出了漸變媒質(zhì)層中反射系數(shù)的微分方程,進(jìn)而獲得了重建媒質(zhì)介電常數(shù)的近似解析閉式.通過給出任意媒質(zhì)層的等效網(wǎng)絡(luò)S參數(shù),可以得到任意連續(xù)媒質(zhì)層介電常數(shù)剖面的一種分域重建方法.重建實(shí)例證明了本文方法的有效性.
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關(guān)鍵詞:
- 分域重建; 等效網(wǎng)絡(luò); 微分方
Abstract: A differential equation for the reflection coefficient of a continuously varied medium is derived by using a network theory, from which an approximation for reconstructing the permittivity profiles is obtained in closed form. Furthermore, the equivalem S scattering parameters of an arbitrary medium are given, based on which the permittivity profiles of an arbitrary continuous medium can be reconstructed in layered regions. Reconstruction examples show the validity of this method. -
葛德彪,電滋逆散射原理,西安電子科技大學(xué)出版社,西安,1987年,第二章,第三章.[2]K. I. Hopcraft, P. R. Smith, J. Opt. Soc. Am. A, 6(1989) 4, 508-516.[3]D. L. Jaggard, Y. Kim. .7. Opt. .Soc. Am. A. 2(1985)11,1922-1930. -
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