Michael J Kavaya from Virginia Beach, VA, age 73

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Position:

AST, Optical Physics at NASA Langley Research Center

Location:

Norfolk, Virginia Area

Industry:

Research

Work:

NASA Langley Research Center
AST, Optical Physics

Eyesafe Coherent Laser Radar For Velocity And Position Measurements
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US Patent:

52373312, Aug 17, 1993
Filed:

May 8, 1992
Appl. No.:

7/880514
Inventors:

Sammy W. Henderson - Boulder CO
Charley P. Hale - Boulder CO
R. Milton Huffaker - Boulder CO
James R. Magee - Boulder CO
Michael J. Kavaya - Huntsville AL
Paul J. M. Suni - Longmont CO
International Classification:

G01S 748
G01S 1395
G01N 2185
US Classification:

342 54
Abstract:

A coherent laser radar system operating at an eyesafe wavelength above 1. 4 microns has been provided for measurement of the position and velocity of hard targets and aerosol targets, said system comprising a frequency-stable master laser and an injection-seeded Q-switched slave laser for generating signals for transmission to the target. Means for obtaining highly accurate velocity and range measurements are provided. Data from signal transmissions and receptions taken over a range of angles are analyzed to map target positions and velocities in time and space.

Lidar Remote Sensing System
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US Patent:

61477478, Nov 14, 2000
Filed:

Aug 14, 1998
Appl. No.:

9/134704
Inventors:

Michael J. Kavaya - Huntsville AL
Farzin Amzajerdian - Madison AL
Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC
International Classification:

G01C 308
G01C 100
G01B 1126
US Classification:

356 401
Abstract:

A lidar remote sensing system wherein a laser signal is transmitted along an optical path through a telescope having a primary and secondary mirrors and a rotating prism at the telescope output. When the reflected signal from the target is received it is passed back through the system to a detector, where it is heterodyned with a signal from a local oscillator to detect Doppler frequency shifts in the returned signal. Since the prism is rotating, the prism will be at one position when the signal is transmitted and at another when the returned signal is received. This causes the reflected signal to be off the optical path, reducing the power of the returned signal. To correct this problem a de-rotator or prism is mounted for rotation, in synchronism with the rotating prism, about the optical path in a position to intersect the returned beam and refract it back onto the optical path to reduce the power loss in the returned signal.

Airborne Doppler Wind Lidar Post Data Processing Software Daps-Lv
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US Patent:

20150253430, Sep 10, 2015
Filed:

Nov 14, 2013
Appl. No.:

14/079965
Inventors:

- Washington DC, US
Grady J. Koch - Yorktown VA, US
Michael J. Kavaya - Yorktown VA, US
Assignee:

U.S.A. as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC
International Classification:

G01S 17/95
Abstract:

Systems, methods, and devices of the present invention enable post processing of airborne Doppler wind LIDAR data. In an embodiment, airborne Doppler wind LIDAR data software written in Lab VIEW may be provided and may run two versions of different airborne wind profiling algorithms. A first algorithm may be the Airborne Wind Profiling Algorithm for Doppler Wind LIDAR (“APOLO”) using airborne wind LIDAR data from two orthogonal directions to estimate wind parameters, and a second algorithm may be a five direction based method using pseudo inverse functions to estimate wind parameters. The various embodiments may enable wind profiles to be compared using different algorithms, may enable wind profile data for long haul color displays to be generated, may display long haul color displays, and/or may enable archiving of data at user-selectable altitudes over a long observation period for data distribution and population.

Michael J Kavaya