Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Reexamination Certificate
2008-07-15
2008-07-15
Alsomiri, Isam (Department: 3662)
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
C356S004080, C356S028000
Reexamination Certificate
active
07400386
ABSTRACT:
Combined laser-based apparatus for determining both altitude and ground velocity of an aircraft comprises: a laser source for emitting pulsed laser beams substantially at a predetermined wavelength; a plurality of first optical elements for directing the laser beams from a first optical path to a second optical path which exits the first optical elements; a plurality of second optical elements configured to form a telescope, the second optical path and telescope field of view being fixedly co-aligned; an optical scanner for directing the second optical path and telescope field of view to desired ground positions while maintaining the co-alignment thereof; the telescope for receiving Doppler wavelength shifted reflections of the pulsed laser beams and directing the received ground reflections substantially over a third optical path; an optical filter element for separating the ground reflections of the third optical path into first and second portions that are dependent on the Doppler wavelength shift of the ground reflections; and processing means for determining altitude and ground velocity of the aircraft based on the first and second portions.
REFERENCES:
patent: 4395121 (1983-07-01), Nory et al.
patent: 5241315 (1993-08-01), Spinhirne
patent: 6246822 (2001-06-01), Kim et al.
patent: 6665063 (2003-12-01), Jamieson et al.
patent: 6717655 (2004-04-01), Cheng et al.
patent: 6894768 (2005-05-01), Caldwell et al.
patent: 7095489 (2006-08-01), Jennings et al.
patent: 7106424 (2006-09-01), Meneely et al.
patent: 2003/0043058 (2003-03-01), Jamieson et al.
patent: 2004/0135992 (2004-07-01), Munro
patent: 2005/0094282 (2005-05-01), Minakawa et al.
Halama Gary E.
Jamieson James R.
Meneely Clinton T.
Alsomiri Isam
Calfee Halter & Griswold LLP
O'Brien Kevin
Rosemount Aerospace Inc.
LandOfFree
Combined laser altimeter and ground velocity measurement... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Combined laser altimeter and ground velocity measurement..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combined laser altimeter and ground velocity measurement... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2778042