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Proceedings Paper

Indoor experimental facility for airborne synthetic aperture radar (SAR) configurations – rail-SAR
Author(s): Getachew Kirose; Brian R. Phelan; Kelly D. Sherbondy; Kenneth I. Ranney; Francois Koenig; Ram M. Narayanan
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Paper Abstract

The Army Research Laboratory (ARL) is developing an indoor experimental facility to evaluate and assess airborne synthetic-aperture-radar-(SAR)-based detection capabilities. The rail-SAR is located in a multi-use facility that also provides a base for research and development in the area of autonomous robotic navigation. Radar explosive hazard detection is one key sensordevelopment area to be investigated at this indoor facility. In particular, the mostly wooden, multi-story building houses a two (2) story housing structure and an open area built over a large sandbox. The housing structure includes reconfigurable indoor walls which enable the realization of multiple See-Through-The-Wall (STTW) scenarios. The open sandbox, on the other hand, allows for surface and buried explosive hazard scenarios. The indoor facility is not rated for true explosive hazard materials so all targets will need to be inert and contain surrogate explosive fills. In this paper we discuss the current system status and describe data collection exercises conducted using canonical targets and frequencies that may be of interest to designers of ultra-wideband (UWB) airborne, ground penetrating SAR systems. A bi-static antenna configuration will be used to investigate the effects of varying airborne SAR parameters such as depression angle, bandwidth, and integration angle, for various target types and deployment scenarios. Canonical targets data were used to evaluate overall facility capabilities and limitations. These data is analyzed and summarized for future evaluations. Finally, processing techniques for dealing with RF multi-path and RFI due to operating inside the indoor facility are described in detail. Discussion of this facility and its capabilities and limitations will provide the explosive hazard community with a great airborne platform asset for sensor to target assessment.

Paper Details

Date Published: 29 May 2014
PDF: 15 pages
Proc. SPIE 9077, Radar Sensor Technology XVIII, 90770Q (29 May 2014); doi: 10.1117/12.2051450
Show Author Affiliations
Getachew Kirose, U.S. Army Research Lab. (United States)
Brian R. Phelan, The Pennsylvania State Univ. (United States)
Kelly D. Sherbondy, U.S. Army Research Lab. (United States)
Kenneth I. Ranney, U.S. Army Research Lab. (United States)
Francois Koenig, U.S. Army Research Lab. (United States)
Ram M. Narayanan, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 9077:
Radar Sensor Technology XVIII
Kenneth I. Ranney; Armin Doerry, Editor(s)

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