[Laser] Freespace Laser Surplus Device Source

[F1AVYopto at aol.com]

Dans un e-mail daté du 17/05/2007 15:59:16 Paris, Madrid (heure d'été),  
aa6eg at hotmail.com a écrit :

http://ocw.mit.edu/NR/rdonlyres/Earth--Atmospheric--and-Planetary-Sciences/12-
215Modern-NavigationFall2002/32B4C612-FDB4-48F0-8429-15FB54F7C633/0/12215lec15
.pdf


Pat,
Very interesting informations about the ranging measurement  principles.
If I well understand small and accurate frequency changings give  phase beats 
between the Tx beam and the  bounced signal.
The range is deducted from the frequencies values for each null  phase.
Tnx for info
73 Yves F1AVY