Accession Number : ADA316153

Title :   Optimization Methods for Direct and Inverse Problems in Electromagnetics.

Descriptive Note : Final rept. 1 Jul 94-30 Jun 96,

Corporate Author : DELAWARE UNIV NEWARK DEPT OF MATHEMATICAL SCIENCES

Personal Author(s) : Angell, T. S. ; Kleinman, R. E.

PDF Url : ADA316153

Report Date : 05 SEP 1996

Pagination or Media Count : 12

Abstract : This report summarizes work carried out in the specific areas of inverse scattering and optimal-control problems in electromagnetics. Major accomplishments involve the modified gradient approach to inverse which was extended to the TE case, inhomogeneous background media, spatially limited frequency diverse data and the inclusion of a resolution enhancing total variation terms. In addition the complete family approach was further developed high frequency optimal current distributions were found for conformal antennas and additional results on low frequency asymptotics and a-posteriori error estimates in numerical solutions of direct problems were found.

Descriptors :   *OPTIMIZATION, *INVERSE SCATTERING, *ANTENNA RADIATION PATTERNS, ALGORITHMS, ELECTROMAGNETIC FIELDS, FINITE ELEMENT ANALYSIS, CURRENT DENSITY, MICROWAVES, ELECTROMAGNETIC WAVE PROPAGATION, ELECTROMAGNETIC SCATTERING, ELECTRICAL CONDUCTIVITY, ERROR ANALYSIS, SYSTEMS ANALYSIS, APPLIED MATHEMATICS, ELECTRICAL IMPEDANCE, LOW FREQUENCY, STOCHASTIC CONTROL, MICROWAVE ANTENNAS.

Subject Categories : Operations Research
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE