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Proceedings Paper

Ultrawideband synthetic vision sensor for airborne wire detection
Author(s): Robert J. Fontana; J. Frederick Larrick; Jeffrey E. Cade; Eugene P. Rivers Jr.
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Paper Abstract

A low cost, miniature ultra wideband (UWB) radar has demonstrated the ability to detect suspended wires and other small obstacles at distances exceeding several hundred feet using an average output power of less than 10 microwatts. Originally developed as a high precision UWB radar altimeter for the Navy's Program Executive Office for Unmanned Aerial Vehicles and Cruise Missiles, an improved sensitivity version was recently developed for the Naval Surface Warfare Center (NSWC Dahlgren Division) as part of the Marine Corps Warfighting Laboratory's Hummingbird program for rotary wing platforms. Utilizing a short pulse waveform of approximately 2.5 nanoseconds in duration, the receiver processor exploits the leading edge of the radar return pulse to achieve range resolutions of less than one foot. The resultant 400 MHz bandwidth spectrum produces both a broad frequency excitation for enhanced detection, as well as a low probability of intercept and detection (LPI/D) signature for covert applications. This paper describes the design and development of the ultra wideband sensor, as well as performance results achieved during field testing at NSWC's Dahlgren, VA facility. These results are compared with those achieved with a high resolution EHF radar and a laser-based detection system.

Paper Details

Date Published: 30 July 1998
PDF: 9 pages
Proc. SPIE 3364, Enhanced and Synthetic Vision 1998, (30 July 1998);
Show Author Affiliations
Robert J. Fontana, Multispectral Solutions, Inc. (United States)
J. Frederick Larrick, Multispectral Solutions, Inc. (United States)
Jeffrey E. Cade, Multispectral Solutions, Inc. (United States)
Eugene P. Rivers Jr., Naval Surface Warfare Ctr. (United States)

Published in SPIE Proceedings Vol. 3364:
Enhanced and Synthetic Vision 1998
Jacques G. Verly, Editor(s)

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