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Overview of terrain relative navigation approaches for precise lunar landing

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dc.contributor.author Johnson, Andrew E.
dc.contributor.author Montgomery, James F.
dc.date.accessioned 2009-04-08T18:15:34Z
dc.date.available 2009-04-08T18:15:34Z
dc.date.issued 2008-03-01
dc.identifier.citation IEEE Aerospace Conference, Big Sky, Montana, March 1, 2008. en_US
dc.identifier.clearanceno 07-4467
dc.identifier.uri http://hdl.handle.net/2014/41154
dc.description.abstract The driving precision landing requirement for the Autonomous Landing and Hazard Avoidance Technology project is to autonomously land within 100m of a predetermined location on the lunar surface. Traditional lunar landing approaches based on inertial sensing do not have the navigational precision to meet this requirement. The purpose of Terrain Relative Navigation (TRN) is to augment inertial navigation by providing position or bearing measurements relative to known surface landmarks. From these measurements, the navigational precision can be reduced to a level that meets the 100m requirement. There are three different TRN functions: global position estimation, local position estimation and velocity estimation. These functions can be achieved with active range sensing or passive imaging. This paper gives a survey of many TRN approaches and then presents some high fidelity simulation results for contour matching and area correlation approaches to TRN using active sensors. Since TRN requires an a-priori reference map, the paper concludes by describing past and future lunar imaging and digital elevation map data sets available for this purpose. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2008. en_US
dc.subject Terrain Relative Navigation (TRN) en_US
dc.subject Autonomous Landing en_US
dc.title Overview of terrain relative navigation approaches for precise lunar landing en_US
dc.type Article en_US


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