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UAVSAR: A New NASA Airborne SAR System for Science and Technology ResearchNASA'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 III. 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).
Document ID
20070032673
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Rosen, Paul A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hensley, Scott
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wheeler, Kevin
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Sadowy, Greg
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Miller, Tim
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Shaffer, Scott
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Muellerschoen, Ron
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Jones, Cathleen
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Zebker, Howard
(Stanford Univ. Palo Alto, CA, United States)
Madsen, Soren
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 23, 2013
Publication Date
April 24, 2006
Subject Category
Communications And Radar
Meeting Information
Meeting: IEEE Radar Conference
Location: Verona, NY
Country: United States
Start Date: April 24, 2006
End Date: April 27, 2006
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
synthetic aperture radar (SAR)
electronically scanned array
radar
interferometry
Unpiloted Arial Vehicle (UAV)

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