Beam Spread Induced by Atmospheric Turbulence in a Folded Path,
Abstract
On the basis of extended Huygens-Fresnel principle and quadratic approximation, general expressions of the beam spread reflected from a target in a turbulent atmosphere are derived. The properties of reflected beam spread are investigated. It is found that there exist amplification and self compensation of beam spread in the reflection from a mirror and a corner cube reflector, respectively. Calculations show that the spread can be reduced by using a long-wavelength laser as well as large transmitting and reflection radii.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 27, 1997
- Accession Number
- ADA320833
Entities
People
- Feng Yuezhong
- Song Zhengfang
Organizations
- National Air and Space Intelligence Center