任意连续媒质层介电常数剖面的分域重建
RECONSTRUCTION OF THE PERMITTIVITY PROFILES OF ARBITRARILY CONTINUOUS MEDIUM IN LAYERED REGIONS
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摘要: 本文应用网络原理导出了渐变媒质层中反射系数的微分方程,进而获得了重建媒质介电常数的近似解析闭式.通过给出任意媒质层的等效网络S参数,可以得到任意连续媒质层介电常数剖面的一种分域重建方法.重建实例证明了本文方法的有效性.
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关键词:
- 分域重建; 等效网络; 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,电滋逆散射原理,西安电子科技大学出版社,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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