Statistics – Applications
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991esasp.328...59l&link_type=abstract
In ESA, Radars and Lidars in Earth and Planetary Sciences p 59-63 (SEE N92-25668 16-32)
Statistics
Applications
Mars (Planet), Mars Sample Return Missions, Mars Surface, Roving Vehicles, Surface Roughness, Synthetic Aperture Radar, Ultrahigh Frequencies, Mars Craters, Mars Landing, Mars Volcanoes, Research Vehicles
Scientific paper
Within the framework of the Automatic Planetary Rover Program a radar with surface and subsurface imagery capabilities is proposed both for scientific applications (30 to 100 m resolution imagery with typical penetration of 10 m) and as additional support to the rover in providing it with information about terrain roughness at relevant scale. The SAR (synthetic aperture radar) frequency is to be selected in the range 500 MHz to 1 GHz. The design of the instrument within the mission constraints is considered in terms of data rate transmission, power, and antenna size. It is shown that the upper frequency band called for a 3.7 m diameter reflector while the lower fequencies require unfurlable antennas. The feasibility and mass of the latter antennas are more critical considering the planetary mission constraints.
Lifermann Anne
Thouvenot Eric
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