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Proceedings Paper

Sensor fusion for wide-area surveillance
Author(s): Harold H. Szu; Joseph P. Garcia
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Paper Abstract

The Gabor transform (GT) is applied to the super-resolution of noisy dot image on the infrared focal plane array (FPA) for the remote surveillance of aircraft or missiles. A unique solution of this kind of ill-posed problem is possible because we have incorporated the measured or a priori known size information of the engine/nozzle. Yet noise makes the super-resolution ill- conditioned. We surmount this difficulty by incorporating the GT into a modified Papoulis- Gerchberg iteration algorithm. This is possible because the GT is a local Fourier transform (FT), it matches the localized object signal (object size one unit) but mismatches the global nature of noise. In a practical case of a photon-limited signal having a signal to noise ratio as low as 1.3, our approach recognizes a simulated missile plume. We also show additional resolution can be gained if the radar backscattering from the nozzle and other scatterers is fused with the spatially resolved single image pixel.

Paper Details

Date Published: 22 March 1996
PDF: 10 pages
Proc. SPIE 2762, Wavelet Applications III, (22 March 1996); doi: 10.1117/12.236023
Show Author Affiliations
Harold H. Szu, Naval Surface Warfare Ctr. (United States)
Joseph P. Garcia, Naval Surface Warfare Ctr. (United States)

Published in SPIE Proceedings Vol. 2762:
Wavelet Applications III
Harold H. Szu, Editor(s)

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