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Proceedings Paper

Recent non-linear radar research at the Army Research Laboratory
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Paper Abstract

Nonlinear radar has proven to be a viable means of detecting devices that contain electrical nonlinearities. Electrical nonlinearities are present in dissimilar metals, metal to oxide junctions, semiconductors and more. This paper presents a linear and nonlinear synthetic aperture radar (SAR) system capable of imaging linear and nonlinear targets. The system creates images using data collected from a fixed 16 channel receiver with a single transmitter. A custom 16:1 switching network was developed to collect the SAR data from a 16 antenna receive array. SAR images presented show a nonlinear target placed directly on the ground and imaged in multiple range and cross-range locations. Data is also presented showing the clutter rejection properties of nonlinear radar. Images show that the harmonic radar is able to ignore the strong linear response from a corner reflector, while retaining the nonlinear response from a target.

Paper Details

Date Published: 25 May 2017
PDF: 9 pages
Proc. SPIE 10188, Radar Sensor Technology XXI, 101881B (25 May 2017); doi: 10.1117/12.2266266
Show Author Affiliations
Kyle A. Gallagher, U.S. Army Research Lab. (United States)
Gregory J. Mazzaro, The Citadel-The Military College of South Carolina (United States)
Anthony F. Martone, U. S. Army Research Lab. (United States)
Kelly D. Sherbondy, U.S. Army Research Lab. (United States)
Ram M. Narayanan, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 10188:
Radar Sensor Technology XXI
Kenneth I. Ranney; Armin Doerry, Editor(s)

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