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Please use this identifier to cite or link to this item: http://hdl.handle.net/2014/40223

Title: UAVSAR : a new NASA airborne SAR system for science and technology research
Authors: Rosen, Paul A.
Hensley, Scott
Wheeler, Kevin
Sadowy, Greg
Miller, Tim
Shaffer, Scott
Muellerschoen, Ron
Jones, Cathleen
Zebker, Howard
Madsen, Soren
Keywords: electronically scanned array
interferometry
radar
synthetic aperture radar (SAR)
Unpiloted Arial Vehicle (UAV)
Issue Date: 24-Apr-2006
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2006.
Citation: IEEE Radar Conference, Verona, New York, April 24-27, 2006.
Abstract: NASA’s Jet Propulsion Laboratory is currently building a reconfigurable, polarimetric L-band synthetic aperture radar (SAR), specifically designed to acquire airborne repeat track SAR data for differential interferometric measurements. Differentian interferometry can provide key deformation measurements, important for studies of earthquakes, volcanoes and other dynamically changing phenomena. Using precision real-time GPS and a sensor controlled flight management system, the system will be able to fly predefined paths with great precision. The expected performance of the flight control system will constrain the flight path to be within a 10 m diameter tube about the desired flight track. The radar will be designed to be operable on a UAV (Unpiloted Aria1 Vehicle) but will initially be demonstrated on a NASA Gulfstream 111. The radar will be fully polarimetric, with a range bandwidth of 80 MHz (2 m range resolution), and will support a 16 km range swath. The antenna will be electronically steered along track to assure that the antenna beam can be directed independently, regardless of the wind direction and speed. Other features supported by the antenna include elevation monopulse and pulse-to-pulse re-steering capabilities that will enable some novel modes of operation. The system will nominally operate at 45,000 ft (13800 m). The program began as an Instrument Incubator Project (IIP) funded by NASA Earth Science and Technology Office (ESTO).
URI: http://hdl.handle.net/2014/40223
Appears in Collections:JPL TRS 1992+

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