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21 December 1998 Millimeter-wave aperture synthesis for remote sensing of the Earth
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Millimeter-wave radiometry of the earth's surface from Low Earth Orbit (LEO) with a resolution of a few km requires antenna apertures several meters across and sub-second scanning times. Fulfilling these requirements with a mechanically scanned real-aperture antenna presents formidable mechanical challenges. An attractive alternative described here is to use synthetic aperture techniques employing a sparse-array of antennas that trade the mechanical complexity of real-aperture imaging for the electrical complexity of synthetic aperture imaging. We present results of an ESA- sponsored study aimed at seeking the optimum technique for high performance synthetic aperture mm-wave radiometry from LEO.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrew Robert Harvey, Alain H. Greenaway, Adriano Camps, Javier Bara, Francisco Torres, Ignasi Corbella, and Manuel Martin-Neira "Millimeter-wave aperture synthesis for remote sensing of the Earth", Proc. SPIE 3498, Sensors, Systems, and Next-Generation Satellites II, (21 December 1998);

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