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Patent Searching and Data


Title:
SCANNING NON-SCANNING LIDAR
Document Type and Number:
WIPO Patent Application WO/2012/112683
Kind Code:
A3
Abstract:
An all fiber optic laser based scanning system for real time terrain mapping under degraded visual conditions is disclosed. A laser output is modulated to achieve a desired pulse width and pulse repetition frequency (PRF) and the modulated signal is amplified. The amplified optical signals are split into N channels that correspond to N elements of an optically phased array that steers light by modulating the phase of light entering and exiting the optical system. By applying a linear phase shift across the beam's wave front, the light propagating along the system's optical axis is steered to an off-axis angle. A real time map of an underlying terrain is accomplished by sweeping the N channel array across the terrain while collecting range information from each scan grid.

Inventors:
ROGERS, Philip, L. (5332 Washwright Road, Hume, VA, 22639, US)
MAMIDIPUDI, Priyavadan (13704 Comrie Way, Bristow, VA, 20136, US)
CHANGKAKOTI, Rupak (5693 Caribbean Court, Haymarket, VA, 20169, US)
DAKIN, Daniel, C. (10101 Sanders Court, Great Falls, VA, 22066, US)
DAKIN, Elizabeth, A. (10101 Sanders Court, Great Falls, VA, 22066, US)
Application Number:
US2012/025249
Publication Date:
December 13, 2012
Filing Date:
February 15, 2012
Export Citation:
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Assignee:
OPTICAL AIR DATA SYSTEMS, LLC (10781 James Payne Court, Manassas, VA, 20110, US)
ROGERS, Philip, L. (5332 Washwright Road, Hume, VA, 22639, US)
MAMIDIPUDI, Priyavadan (13704 Comrie Way, Bristow, VA, 20136, US)
CHANGKAKOTI, Rupak (5693 Caribbean Court, Haymarket, VA, 20169, US)
DAKIN, Daniel, C. (10101 Sanders Court, Great Falls, VA, 22066, US)
DAKIN, Elizabeth, A. (10101 Sanders Court, Great Falls, VA, 22066, US)
International Classes:
G01S13/06
Foreign References:
US5157257A1992-10-20
US5832006A1998-11-03
US6577417B12003-06-10
US20020105632A12002-08-08
Attorney, Agent or Firm:
LEE, Michael, Q. et al. (1100 New York Avenue N.W, Washington, DC, 20005-3934, US)
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