Millimeter-wave aperture synthesis for remote sensing of the Earth
Document typeConference report
Rights accessOpen Access
Millimetre-wave radiometry of the earth's surface from Low Earth Orbit (LEO) with a resolution of a few km requires antenna apertures several metres 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.
CitationHarvey, A., Greenaway, A., Camps, A., Bara, F., Torres, F., Corbella, I., Martín, M. Millimeter-wave aperture synthesis for remote sensing of the Earth. A: Sensors, Systems, and Next-Generation Satellites. "Proceedings of SPIE 3498: Sensors, Systems, and Next-Generation Satellites II". Barcelona: 1998, p. 82-93.