Title :
Use of radio telescopes or satellite Earth station antennas as ultra-high scattering cross-section calibration targets for spaceborne remote sensing radars
Author_Institution :
Keith M. Keen & Associates, Loxwood, UK
Abstract :
Spaceborne synthetic aperture and scatterometer radars currently under development for Earth remote sensing may require the provision of ground calibration targets with very large scattering cross-sections. One way of providing these would be to adapt existing parabolic radio telescopes or satellite Earth station antennas by replacing the feed by a metallic sphere. A dichroic surface would facilitate tracking.
Keywords :
calibration; microwave antennas; radar applications; radiotelescopes; remote sensing; satellite ground stations; dichroic surface; ground calibration targets; radio telescopes; satellite earth station antennas; scatterometer radars; spaceborne remote sensing radars; synthetic aperture radars; tracking; ultra-high scattering cross-section;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830155