Accession Number:

ADA339219

Title:

AASERT on Ultra-Wideband Electromagnetics

Descriptive Note:

Final rept. 15 Jun 94-14 Sep 97

Corporate Author:

POLYTECHNIC UNIV BROOKLYN NY

Personal Author(s):

Report Date:

1997-08-28

Pagination or Media Count:

4.0

Abstract:

In the course of our research we have demonstrated that the ultra wideband transient fields which scatter from a general target can be represented as a sum of wavefronts, resonances, and chirps. The latter is of particular importance for scattering from engine inlets, often the principal source of scattering from military aircraft. To date inverse algorithms have been developed based on wavefronts and resonances separately, and very little work has been directed toward including the effects of chirps. Over the last year we have implemented a wave based matching pursuits algorithm which incorporates all three wave objects, with application to data scattered from military aircraft. In addition to developing the algorithm per se, we have performed a detailed analysis of its performance for noisy data.

Subject Categories:

  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE