A Dual Pulse Heterodyne Lidar for the Measurement of Atmospheric Velocity Turbulence

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$736,033.00
Award Year:
1998
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
36156
Agency Tracking Number:
36156
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
10 Corporate Place, Woburn, MA, 01801
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. Patrick Mcnicholl
(617) 935-6500
Business Contact:
() -
Research Institute:
n/a
Abstract
Previous Doppler lidar statistical measurements of mechanical turbulence have only been successful in discerning moderate to strong wind field turbulence. This limitation is related to the transmitter pulse duration which is restricted by both the available laser technology and the range resolution requirements. We propose a real time dual pulse speckle correlation technique which will overcome these limitations. The range resolution afforded by the proposed method is determined by the individual pulse durations wheras its sensitivity to light turbulence conditions is determined by the inter-pulse time delay. The unique dual transmitter Air Force Phillips Laboratory MAPM lidar provides an ideal opportunity to test this approach and demonstrate its sensitivity and utility. With only minor hardware modifications, this system would be capable of remote measurement of wind velocity dispersions less than 0.1 m/s and with a range resolution on the order of 50-100 m.

* information listed above is at the time of submission.

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