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First Results from an Airborne Ka-band SAR Using SweepSAR and Digital BeamformingNASA/JPL has developed SweepSAR technique that breaks typical Synthetic Aperture Radar (SAR) trade space using time-dependent multi-beam DBF on receive. Developing SweepSAR implementation using array-fed reflector for proposed DESDynI Earth Radar Mission concept. Performed first-of-a-kind airborne demonstration of the SweepSAR concept at Ka-band (35.6 GHz). Validated calibration and antenna pattern data sufficient for beam forming in elevation. (1) Provides validation evidence that the proposed Deformation Ecosystem Structure Dynamics of Ice (DESDynI) SAR architecture is sound. (2) Functions well even with large variations in receiver gain / phase. Future plans include using prototype DESDynI SAR digital flight hardware to do the beam forming in real-time onboard the aircraft.
Document ID
20130003259
Acquisition Source
Jet Propulsion Laboratory
Document Type
Presentation
External Source(s)
Authors
Sadowy, Gregory
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ghaemi, Hirad
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hensley, Scott
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 27, 2013
Publication Date
May 24, 2012
Subject Category
Avionics And Aircraft Instrumentation
Meeting Information
Meeting: 9th European Conference on Synthetic Aperture Radar
Location: Nurembur
Country: Germany
Start Date: April 23, 2012
End Date: April 26, 2012
Distribution Limits
Public
Copyright
Other
Keywords
Digital Beamforming
Analog-digital conversio
DESDynI: Deformation Ecosystem Structure Dynamics of Ice
Beam steering
synthetic aperture radar

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