Physics
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.302..159p&link_type=abstract
In ESA, Physics and Mechanics of Cometary Materials p 159-163 (SEE N90-19989 12-90)
Physics
Comet Nuclei, Comets, Core Sampling, European Space Programs, Radio Altimeters, Return To Earth Space Flight, Synthetic Aperture Radar, Correlation Detection, Footprints, Pulse Radar, Radar Beams, Radar Resolution, Roughness
Scientific paper
The altimeter and sounding radar, one of the planned instruments on board the spacecraft in the Comet Nucleus Sampling Return (CNSR) mission, is addressed. This mission involves the study and design of a complete spacecraft system capable of landing on the comet nucleus and performing subsurface analysis. The requirements are recalled and the performance of a conventional beam-limited and pulse-limited radar altimeter are considered. In order to improve the horizontal resolution the synthetic aperture approach is proposed to be integrated to the radar altimeter.
Melacci Pietro T.
Picardi Giovanni
Seu Roberto
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