Sub-millimeter laser ranging results using a pseudo-random code modulation

Autor: Carlos Esproles, Joseph M. Kovalik, Hamid Hemmati, William H. Farr
Rok vydání: 2005
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
DOI: 10.1117/12.600831
Popis: 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.
Databáze: OpenAIRE