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Lunar Topographic Mapping Using a New High Resolution Mode for the GSSR RadarMapping the Moon's topography using Earth based radar interferometric measurements by the Goldstone Solar System Radar (GSSR) has been done several times since the mid 1990s. In 2008 we reported at this conference the generation of lunar topographic maps having approximately 4 m height accuracy at a horizontal posting of 40 m. Since then GSSR radar has been improved to allow 40 MHz bandwidth imaging and consequently obtained images and interferograms with a resolution of about 4 m in range by 5 m in azimuth. The long synthetic aperture times of approximately 90 minutes in duration necessitated a migration from range/Doppler image formation techniques to spotlight mode processing and autofocusing methods. The improved resolution imagery should permit the generation of topographic maps with a factor of two better spatial resolution with about same height accuracy. Coupled the with the recent availability of new lidar topography maps of the lunar surface made by orbiting satellites of Japan and the United States the geodetic control of the radar generated maps products can be improved dramatically. This paper will discuss the hardware and software improvements made to the GSSR and present some of the new high resolution products.
Document ID
20150008581
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Hensley, Scott
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Gurrola, Eric
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Slade, Martin
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Quirk, Kevin
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Srinivasan, Meera
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lee, Clement
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Yun, Sang-Ho
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Jao, Joseph
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wilson, Barbara
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
De Jong, Eric
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Marechal, Nick
(Aerospace Corp. El Segundo, CA, United States)
Weintraub, Lawrence
(Aerospace Corp. El Segundo, CA, United States)
Dickinson, Richard
(Aerospace Corp. El Segundo, CA, United States)
Bloom, Ronald
(Aerospace Corp. El Segundo, CA, United States)
Karamyan, Grant
(Aerospace Corp. El Segundo, CA, United States)
Lilje, Anneliese
(Aerospace Corp. El Segundo, CA, United States)
Harcke, Leif
(Aerospace Corp. El Segundo, CA, United States)
Date Acquired
May 20, 2015
Publication Date
May 10, 2010
Subject Category
Lunar And Planetary Science And Exploration
Communications And Radar
Meeting Information
Meeting: IEEE National Radar Conference
Location: Washington, DC
Country: United States
Start Date: May 10, 2010
End Date: May 14, 2010
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
interferometry
topography

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