Scintillation of a gaussian beam reflected by a point target

Ammar Al-Habash; Larry C. Andrews; R. L. Phillips

doi:10.1117/12.397795

5 September 2000 Scintillation of a gaussian beam reflected by a point target

Ammar Al-Habash, Larry C. Andrews, R. L. Phillips

Author Affiliations +

Proceedings Volume 4035, Laser Radar Technology and Applications V; (2000) https://doi.org/10.1117/12.397795
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

Free space optical beam propagation is largely limited by the visibility of the channel at a particular location and at a particular time. In the absence of highly scattering particles, such as rain drops and snow flakes, the scintillation is the most severe limitation to system performance in an optical channel. An area of application mathematically similar to optical communications is laser radar. In a laser radar, a beam is transmitted through a channel, the atmosphere in our case, reflected by a target and received either at the same location it was transmitted from (monostatic channel) or another location (bistatic channel). Knowledge of the scintillation of the reflected beam could not only help design an appropriate receiving system, but could also give information about the reflecting object that could be utilized in forming its optical signature. Using our recently developed theory, we calculate the scintillation of a Gaussian beam propagating through atmospheric turbulence and reflected by a point target. The double pass scintillation is investigated for monostatic and bistatic channels and results are compared with our experimental data collected by an eight aperture heterodyne detection system.

Citation Download Citation

Ammar Al-Habash, Larry C. Andrews, and R. L. Phillips "Scintillation of a gaussian beam reflected by a point target", Proc. SPIE 4035, Laser Radar Technology and Applications V, (5 September 2000); https://doi.org/10.1117/12.397795

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE