Parametric Inverse Scattering for Lossless Dispersive Media with Enhanced Robustness

  • Park, Hyoung-Jin (Division of Electronic and Computer Engineering, Hanyang University) ;
  • Lee, Sang-Seol (Division of Electronic and Computer Engineering, Hanyang University)
  • Published : 2003.05.01

Abstract

The effects of high frequency noises on a perturbational inversion technique for a stratified dispersive medium are investigated in this paper. It is shown that the perturbational solution becomes unstable under high frequency noises. The physical origin of this instability is described. In order to enhance the robustness of the perturbational inverse scattering solution, a parametric inversion technique is introduced. The examples for the 2-pole and the 3-pole reflection coefficients are compared and contrasted, and improvement of the robustness of the solutions is shown.

Keywords

References

  1. Proc. IEE v.126 no.10 Inverse scattering theory and profile reconstruction A.K.Jordan;S.Ahn
  2. IEEE Trans. Antennas and Propagation v.AP-29 no.2 The applicability of an inverse method for reconstruction of electron-density profiles M.H.Reilly;A.K.Jordan
  3. IEEE Trans. Antennas and Propagation v.AP-31 no.5 Perturbational and high frequency profile inversion D.B.Ge;D.L.Jaggard;H.N.Kritikos https://doi.org/10.1109/TAP.1983.1143135
  4. Field Analysis and electromagnetics M.Javid;P.M.Brown
  5. Electromagnetic Theory J.A.Stratton