Detection of unexploded ordnance using physical optics simulated images as templates

Thyagaraju Damarla; Anders J. Sullivan; Karl A. Kappra; Jeffrey Sichina; David C. Wong

doi:10.1117/12.391856

19 July 2000 Detection of unexploded ordnance using physical optics simulated images as templates

Thyagaraju Damarla, Anders J. Sullivan, Karl A. Kappra, Jeffrey Sichina, David C. Wong

Proceedings Volume 4033, Radar Sensor Technology V; (2000) https://doi.org/10.1117/12.391856
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

We present results of an unexploded ordnance (UXO) detection algorithm based on template matching in ultra-wideband (130 MHz to 1.2 GHz) synthetic aperture radar (SAR) data. We compute scattered fields of UXOs in different orientations, both on the surface and buried at different depths, using a physical optics (PO) approximation for perfectly conducting targets in a half space via the half-space Green's function. The PO code that we developed computes the scattered fields in a lossy and dispersive material. This permits simulation of targets in real soil. The frequency-domain scattered fields are transformed into time-domain. SAR images of the UXOs at different aspect angles are generated by a standard backprojection technique, with the same resolution as the ground-penetrating ultra-wideband SAR. These SAR images form the templates for detection of the UXOs.

Citation Download Citation

Thyagaraju Damarla, Anders J. Sullivan, Karl A. Kappra, Jeffrey Sichina, and David C. Wong "Detection of unexploded ordnance using physical optics simulated images as templates", Proc. SPIE 4033, Radar Sensor Technology V, (19 July 2000); https://doi.org/10.1117/12.391856

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