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Proceedings Paper

Millimeter-wave aperture synthesis for remote sensing of the Earth
Author(s): Andrew Robert Harvey; Alain H. Greenaway; Adriano Camps; Javier Bara; Francisco Torres; Ignasi Corbella; Manuel Martin-Neira
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Paper Abstract

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.

Paper Details

Date Published: 21 December 1998
PDF: 12 pages
Proc. SPIE 3498, Sensors, Systems, and Next-Generation Satellites II, (21 December 1998); doi: 10.1117/12.333620
Show Author Affiliations
Andrew Robert Harvey, Defence Evaluation and Research Agency Malvern (United Kingdom)
Alain H. Greenaway, Defence Evaluation and Research Agency Malvern (United Kingdom)
Adriano Camps, Univ. Politecnica de Catalunya (Spain)
Javier Bara, Univ. Politecnica de Catalunya (Spain)
Francisco Torres, Univ. Politecnica de Catalunya (Spain)
Ignasi Corbella, Univ. Politecnica de Catalunya (Spain)
Manuel Martin-Neira, European Space Agency/ESTEC (Netherlands)

Published in SPIE Proceedings Vol. 3498:
Sensors, Systems, and Next-Generation Satellites II
Hiroyuki Fujisada, Editor(s)

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