Measurements of Direct Path and Folded Path Optical Scintillation

Abstract

A theoretical prediction by Dr. Avihu Ze'evi of the correlation between direct path and folded path optical scintillation was developed and published at the Naval Postgraduate School in March 1982. Simultaneously, a method for measuring the scintillation of two laser beams propagating along direct and fold paths was devised and used to record preliminary findings supporting the theoretical work. This system has been improved upon to permit a complete experimental verification of the theory to be attempted outside the laboratory. The experimental results do not support Dr. Ze'evi's theory; however, changing turbulence conditions while measuring the scintillation strength may have been the cause. Further attempts at verification will have to control this factor.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA126627

Entities

People

  • Bradford A. Speer
  • Frederick H. Parker

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Amplifiers
  • Boundary Layer
  • Computer Programs
  • Databases
  • Fresnel Zones
  • Laser Beams
  • Lasers
  • Measurement
  • Modulation
  • Normal Distribution
  • Optical Equipment
  • Optics
  • Physics
  • Processing Equipment
  • Refractive Index
  • Turbulence
  • United States Naval Academy

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Systems Analysis and Design
  • Wave Propagation and Nonlinear Chaotic Dynamics.

Technology Areas

  • Directed Energy