Determination of index profiles by time domain reflectometry

Abstract : A numerical approach of the reconstruction of an inhomogeneous slab is described, the relative permittivity or the index of which are unknown. This one-dimensional dielectric medium is assumed to be linear, isotropic and non-magnetic, its conductivity being known, generally equal to zero. Its frequency independent permittivity arbitrarily varies, normally to its interfaces. A TEM plane wave of arbitrary causal time dependence illuminates this slab. A solution of this inverse problem is based upon a space-time discretization of a field integral formulation, in time-domain. A checked iterative process makes it possible to determine the index profile step by step. Some examples are given to illustrate the main features of this reconstruction method; simulation of experimental errors is considered with a special attention.
Document type :
Journal articles
Complete list of metadatas

https://hal-centralesupelec.archives-ouvertes.fr/hal-01263054
Contributor : Dominique Lesselier <>
Submitted on : Wednesday, January 27, 2016 - 1:02:30 PM
Last modification on : Thursday, April 5, 2018 - 12:30:05 PM

Links full text

Identifiers

Collections

Citation

Dominique Lesselier. Determination of index profiles by time domain reflectometry. Journal of Optics A: Pure and Applied Optics, IOP Publishing, 1977, 9 (6), pp.349-358. ⟨10.1088/0150-536X/9/6/004⟩. ⟨hal-01263054⟩

Share

Metrics

Record views

330