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Title: A Faceted Shape Model Approach to Altimetry and Velocimetry for Irregularly Shaped Bodies
Authors: Bayard, D.S.
Brugarolas, P.B.
Broschart, S.B.
Keywords: altimetry
state estimation
facet models
Issue Date: 18-Aug-2008
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008.
Citation: AIAA Guidance, Navigation and Control Conference and Exhibit, August 18, 2008, Honolulu, Hawaii.
Abstract: Range and velocity sensors based on lidar or radar with multiple beams are often used to measure the altitude and velocity, respectively, of a spacecraft above a target body. A difficulty that arises when navigating about small bodies such as asteroids or comets, is that the notion of altitude is largely obscured by the irregular shape of the target surface. This paper develops a method to incorporate the multibeam altimeter and Doppler velocimeter measurements into the on-board spacecraft state estimator by using information from a faceted shape model representation of the target body surface.
Appears in Collections:JPL TRS 1992+

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