AASERT on Ultra-Wideband Electromagnetics

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.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 28, 1997
Accession Number
ADA339219

Entities

People

  • Lawrence Carin
  • Unnikrishna Pillai

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Algorithms
  • Detection
  • Diffraction
  • Electrical Engineering
  • Engineering
  • Frequency
  • Military Aircraft
  • Remote Sensing
  • Resonance
  • Scattering
  • Scientific Research
  • Signal Processing
  • Target Detection
  • Time Domain
  • Wavefronts

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Optical Physics and Photonics.
  • Technical Research and Report Writing.