Sensor fusion for wide-area surveillance

Harold H. Szu; Joseph P. Garcia

doi:10.1117/12.236023

22 March 1996 Sensor fusion for wide-area surveillance

Harold H. Szu, Joseph P. Garcia

Proceedings Volume 2762, Wavelet Applications III; (1996) https://doi.org/10.1117/12.236023
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

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.

Citation Download Citation

Harold H. Szu and Joseph P. Garcia "Sensor fusion for wide-area surveillance", Proc. SPIE 2762, Wavelet Applications III, (22 March 1996); https://doi.org/10.1117/12.236023

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available