Result: The Lunar Mini-RF Radars: Hybrid Polarimetric Architecture and Initial Results

Title:
The Lunar Mini-RF Radars: Hybrid Polarimetric Architecture and Initial Results
Authors:
RANEY, R. Keith, SPUDIS, Paul D, SEQUEIRA, H. Brian, WINTERS, Helene, BUSSEY, Ben, CRUSAN, Jason, JENSEN, J. Robert, MARINELLI, W, MCKERRACHER, Priscilla, NEISH, Catherine, PALSETIA, Marzban, SCHULZE, Ron
Source:
Solar System Radar & Radio ScienceProceedings of the IEEE. 99(5):808-823
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2011.
Publication Year:
2011
Physical Description:
print, 41 ref
Original Material:
INIST-CNRS
Subject Terms:
Computer science, Informatique, Sciences exactes et technologie, Exact sciences and technology, Terre, ocean, espace, Earth, ocean, space, Astronomie, Astronomy, Astronomie fondamentale et astrophysique. Instrumentation, techniques, et observations astronomiques, Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations, Techniques d'observation et de réduction des données. Simulation et modélisation par ordinateur, Observation and data reduction techniques. Computer modeling and simulation, Techniques d'observation à distance, Remote observing techniques, Système solaire, Solar system, Lune, Moon, Instrument spatial, Spaceborne instruments, Lune, Moon, Matrice covariance, Covariance matrices, Orbite, Orbits, Paramètre Stokes, Stokes parameters, Polarimétrie radar, Radar polarimetry, Polarisation circulaire, Circular polarization, Polarisation rectiligne, Linear polarization, Radar ouverture synthétique, Synthetic-aperture radar, Circular polarization ratio, polarimetric radar, radar astronomy, synthetic aperture radar
Document Type:
Academic journal Article
File Description:
text
Language:
English
Author Affiliations:
Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723-6099, United States
Lunar and Planetary Institute, Houston, TX 77058, United States
NASA Headquarters, Washington, DC 20546, United States
ISSN:
0018-9219
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=24181935
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Astronomy
Accession Number:
edscal.24181935
Database:
PASCAL Archive

Further Information

The two mini-radio-frequency (mini-RF) radars flown in near-polar lunar orbits (on Chandrayaan-1 and the Lunar Reconnaissance Orbiter) were the first of their kind, hybrid-polarimetric. This new paradigm transmits circular polarization, and receives coherently on orthogonal linear polarizations. The resulting data support calculation of the 2 x 2 covariance matrix of the backscattered field, from which follow the four Stokes parameters. These are the basis of science products from the observations, which include images that are traditional in radar astronomy, as well as polarimetric decompositions. The instruments all have mass less than 15 kg, antenna areas of about 1 m2, and modest power and spacecraft accommodation requirements. Data quality and instrument characteristics suggest that hybrid polarity is highly desirable for future exploratory radar missions in the Solar system.