A Technique for Estimating the Inner Scale and Strength of Turbulence along an Optical Propagation Path

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,950.00
Award Year:
2006
Program:
SBIR
Phase:
Phase I
Contract:
FA9451-06-M-0136
Award Id:
78796
Agency Tracking Number:
F061-009-2005
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1341 South Sunkist Street, Anaheim, CA, 92806
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
801256199
Principal Investigator:
Terry Brennan
Senior Scientist
(714) 772-7668
tbrennan@tosc.com
Business Contact:
Glenn Tyler
President
(714) 772-7668
glenn.a.tyler@tosc.com
Research Institution:
n/a
Abstract
The Kolmogorov spectrum for the refractive index is often assumed for analysis and simulation of optical propagation through turbulence. It is recognized that the Hill spectrum, including inner scale, is a more realistic model of index variations. This model includes a turbulence enhancement in a spectral subrange prior to the inner scale roll-off. Knowledge of this enhancement and the subsequent roll-off is important for predicting the statistics of both phase and scintillation effects. A technique for estimating the inner scale, L0, is proposed which can be implemented as part of a simple sensor system. The proposed inner scale sensor is also capable of estimating the Fried coherence length, r0, and the Greenwood frequency.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government