Use of physical concepts in dealing with problems of multiple scatter

Details Use of physical concepts in dealing with problems of multiple scatter Use of physical concepts in dealing with problems of multiple scatter

Dec 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jatp...40.1257u&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 40, Dec. 1978, p. 1257-1266.

Physics

Atmospheric Scattering, Mathematical Models, Scintillation, Wave Scattering, Light Scattering, Radio Scattering, Random Processes

Scientific paper

A physical picture is presented of the processes which produce intensity fluctuations in a wave propagating in a random medium in the case of multiple scatter. Two different mechanisms which can lead to intensity fluctuations are identified, and it is shown why a scintillation index greater than unity can arise when a parameter gamma which characterizes different media is very large. The position of this focal region is shown to behave as gamma exp -1/3. When gamma is very large the field in the medium is similar to that produced by a deeply modulated phase screen and the results of deep phase-screen theory can be usefully applied to the extended medium.

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