Electrooptics: Propagation from IR to UV and sensor considerations. Part A: Propagation theory
Abstract
The basic propagation theory is presented in a form usable for electrooptical systems engineers. Starting with the different contributions which affect an electrooptical system under environmental conditions (background, targetsignature, atmospheric propagation, sensor specifications, signalprocessing) the atmospheric transmittance separated into molecular and particle contributions is discussed. Both absorption and scattering terms as well as scattering functions are given with respect to their wavelength dependence. For statistical system performance analysis extinction coefficients for Nd:YAG and CO2 laser radiation derived from measured OPAQUE data of Southern Germany are discussed. They are given as a function of the month of the year for specific cumulative probabilities. Optical turbulence which is affecting laser systems more than broad band systems is discussed with emphasis on intensity and phase fluctuation in the atmospheric boundary layer. Nonlinear effects encountered in highenergy laser beam propagation through the atmosphere are illustrated.
 Publication:

In AGARD
 Pub Date:
 September 1994
 Bibcode:
 1994pmda.agarQ....K
 Keywords:

 Atmospheric Models;
 ElectroOptics;
 Extinction;
 Germany;
 Laser Beams;
 Scattering Functions;
 Signal Processing;
 Statistical Analysis;
 Systems Engineering;
 Turbulence;
 Wave Propagation;
 Atmospheric Boundary Layer;
 Carbon Dioxide Lasers;
 Infrared Radiation;
 Mathematical Models;
 Nonlinearity;
 Probability Theory;
 Time Dependence;
 Ultraviolet Radiation;
 Communications and Radar