19 May 2005 Scanning altimetric lidar (SALLI): an efficient planetary altimetric mapping instrument
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SALLI is a conceptual instrument design that will efficiently acquire altimetric data for a planetary body or asteroid from orbit while maintaining a minimum power demand. SALLI scans its measurements off-nadir using a novel circular scanning technique that simultaneously permits a large instrument aperture using a motion-bandwidth efficient scanning mechanism. By combining spacecraft ephemeris data with SALLI’s measurement set, a complete digital elevation map of a planet or similar body can be generated in less time and using less spacecraft power than similar scanning and multi-beam instruments designed for the same purpose. SALLI was originally designed to generate measurement data to produce a topographical map of the lunar surface from a polar-orbiting host spacecraft; however, its benefits extend to a variety of other mapping missions of planets or asteroids.
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Ross Gillett, Andy Cheng, Ben Bussey, Eric Martin, Arkady Ulitsky, "Scanning altimetric lidar (SALLI): an efficient planetary altimetric mapping instrument", Proc. SPIE 5798, Spaceborne Sensors II, (19 May 2005); doi: 10.1117/12.609449; https://doi.org/10.1117/12.609449

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