Accession Number : ADA134827

Title :   Effects of Atmospheric Refraction on U.S. Ground Warfare.

Descriptive Note : Master's thesis,


Personal Author(s) : Mouras,T P ; Houser,C T

PDF Url : ADA134827

Report Date : Sep 1983

Pagination or Media Count : 317

Abstract : This thesis investigates the effects of atmospheric refraction on military ground-force tactical systems which utilize EM energy propagating through the troposphere. Anomalous propagation, mirages, and atmospheric turbulence are the three major atmospheric refractive conditions discussed. EM energy from visible light to VHF radio is considered. The refractive characteristics of the atmosphere and the conditions that lead to significant refractive effects are reviewed. The means of predicting atmospheric refraction and the usefulness of such predictions, along with the probability of occurrence of atmospheric refraction is also discussed. Specific examples of atmospheric refractive effects are provided in two forms: computer simulations and qualitative studies. A scenario is simulated showing the wide range of atmospheric refractive effects a typical ground force might anticipate in a desert environment. Finally, the thesis provided conclusions and recommendations for further studies.

Descriptors :   *Atmospheric refraction, Electromagnetic wave propagation, Anomalies, Troposphere, Turbulence, Land warfare, Tanks(combat vehicles), Fire control systems, Optical equipment, Communication and radio systems, Radar, Direction finding, Gradients, Horizontal orientation, Accuracy, Theses

Subject Categories : Fire Control and Bombing Systems
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE