Accession Number:

ADA343680

Title:

Pulse Propagation in Random Media

Descriptive Note:

Final rept. 1 Feb 95-31 Jan 98

Corporate Author:

VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF MATHEMATICS

Personal Author(s):

• Kohler, Werner E.

Report Date:

1998-03-30

Pagination or Media Count:

31.0

Abstract:

1 Multiple scattering of electromagnetic waves in randomly layered dissipative media. The magnetotelluric MT problem considered has lent itself to modeling within the weak noise or Gauss Markov regime. In addition to considering propagation per se, the issue of the detection of anomalous layers has been addressed. Details are presented in the enclosed preprint, Random Scattering in Magnetotellurics, by Benjamin White, Werner Kohler, and Leonard Srnka, which has been submitted for publication to Geophysics. 2 Extension of the ideas mentioned above to the case of an undulating locally layered medium. The theory developed for layered media is shown to be robust. 3 Incorporation of the above analysis into an inversion strategy.

Descriptors:

• *GEOMAGNETISM
• *ELECTROMAGNETIC WAVE PROPAGATION
• *ELECTROMAGNETIC SCATTERING
• MATHEMATICAL MODELS
• MAXIMUM LIKELIHOOD ESTIMATION
• MONTE CARLO METHOD
• INVERSE SCATTERING
• ELECTRICAL IMPEDANCE

Subject Categories:

• Electricity and Magnetism
• Operations Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE