OPTICAL COMMUNICATION THROUGH MULTIPLE-SCATTERING MEDIA

Abstract

A model is developed for the effects of multiple scattering upon optical-frequency radiation. Attention is focused upon situations in which the scattering particles are large compared to the carrier wavelength, so that forward-scattering predominates. This is the case for atmospheric clouds at visible-light wavelengths, the physical framework within which the analysis is carried out. The objectives served by the model are those of a communications engineer desiring to design a system for optical communication through clouds. The spatial variation of the intensity of light beneath a cloud subjected to continuous-wave illumination is modeled as the output of a multidimensional linear system. The approximate impulse response of the system is determined, in two complementary forms, and the approximate response below the cloud under arbitrary illumination is shown to be given by a linear superposition integral. In general, the spatial behavior is representable as a joint function of angle of arrival and horizontal coordinates over the ground.

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Document Details

Document Type
Technical Report
Publication Date
Nov 22, 1968
Accession Number
AD0688850

Entities

People

  • Harold M. Heggestad

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Communication Systems
  • Composite Materials
  • Diffraction
  • Distribution Functions
  • Doppler Effect
  • Electrical Engineering
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Geometry
  • Human Behavior
  • Integral Equations
  • Lasers
  • Monte Carlo Method
  • Optics
  • Random Variables
  • Scattering
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Optical Physics and Photonics.