NDLI: Coherent doppler lidar for precision navigation of spacecrafts

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Coherent doppler lidar for precision navigation of spacecrafts

Content Provider	NASA Technical Reports Server (NTRS)
Author	Hines, Glenn Petway, Larry Barnes, Bruce Amzajerdian, Farzin Pierrottet, Diego Lockhard, George
Copyright Year	2011
Description	A fiber-based coherent Doppler lidar, utilizing an FMCW technique, has been developed and its capabilities demonstrated through two successful helicopter flight test campaigns. This Doppler lidar is expected to play a critical role in future planetary exploration missions because of its ability in providing the necessary data for soft landing on the planetary bodies and for landing missions requiring precision navigation to the designated location on the ground. Compared with radars, the Doppler lidar can provide significantly higher precision velocity and altitude data at a much higher rate without concerns for measurement ambiguity or target clutter. Future work calls for testing the Doppler lidar onboard a rocket-powered free-flyer platform operating in a closed-loop with the vehicle s guidance, navigation, and control (GN&C) unit.
File Size	397594
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110012980
Archival Resource Key	ark:/13960/t9t200h23
Language	English
Publisher Date	2011-06-20
Access Restriction	Open
Subject Keyword	Communications And Radar Soft Landing Flight Tests Position Location Planets Navigation Helicopters Precision Guidance Motion Control Equipment Space Platforms Space Exploration Doppler Radar Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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