DEVELOPMENT OF APPROXIMATIONS FOR A FAST-METHOD OF MOMENTS TECHNIQUE BASED ON NORMAL MODES

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 5780
Amount: $500,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1988
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Po Box 8482, Albuquerque, NM, 87198
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 T H Lehman
 (505) 265-3538
Business Contact
Phone: () -
Research Institution
N/A
Abstract
A FAST NEW APPROXIMATION FOR THE METHOD OF MOMENTS SOLUTION OF ELECTROMAGNETIC RESPONSE PROBLEMS IS PROPOSED. THE NEW APPROACH IS BASED ON SEPARATION OF THE PROBLEM INTO A GLOBAL RESPONSE SET DEPENDENT ON NORMAL MODES, AND A LOCAL RESPONSE DEPENDENT ON GEOMETRICAL OPTICS. THE EFFORTS OF NEGLECTING THE LOCAL RESPONSE TERM ALONG WITH OTHER APPROXIMATIONS WILL BE INVESTIGATED TO QUALITFY THE RESULTING ERROR AND PERFORMANCE. THIS NEW TECHNIQUE IS EXPECTED TO BE AS MUCH AS 1000 TIMES FASTER THAN CONVENTIONAL METHOD-OF-MOMENTS FORMULATIONS FOR TYPICAL PROBLEMS. THE FEASIBILITY OF EXTENDING THIS APPROACH TO MORE COMPLEX GEOMETRIES AND TO HYBRID SOLUTION TECHNIQUES, WHERE THE FAST RESPONSE SOLUTION IS OVERLAID INTO ANOTHER SOLUTION TECHNIQUE SUCH AS A NON-LINEAR FINITE DIFFERENCE COMPUTATION, WILL BE EVALUATED.

* Information listed above is at the time of submission. *

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