AASERT on Ultra-Wideband Electromagnetics
Final rept. 15 Jun 94-14 Sep 97
POLYTECHNIC UNIV BROOKLYN NY
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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.
- Radiofrequency Wave Propagation