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Proceedings Paper

Sub-millimeter laser ranging results using a pseudo-random code modulation
Author(s): Joseph M. Kovalik; William H. Farr; Carlos Esproles; Hamid Hemmati
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Paper Abstract

A laser beam with a pseudo random bit stream pattern amplitude modulation is retro reflected off a target to produce a real time ranging signal using a cross correlation technique. The measured resolution of the system was 0.2 mm with an absolute accuracy of ± 2 mm over 2 m. The use of a modulated retro reflector allows a communications signal to be added to the ranging capability.

Paper Details

Date Published: 18 April 2005
PDF: 4 pages
Proc. SPIE 5712, Free-Space Laser Communication Technologies XVII, (18 April 2005); doi: 10.1117/12.600831
Show Author Affiliations
Joseph M. Kovalik, Jet Propulsion Lab. (United States)
William H. Farr, Jet Propulsion Lab. (United States)
Carlos Esproles, Jet Propulsion Lab. (United States)
Hamid Hemmati, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 5712:
Free-Space Laser Communication Technologies XVII
G. Stephen Mecherle, Editor(s)

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