A Device for Plotting Rays in a Stratified Medium
作者:
A. W. Lawson,
P. H. Miller,
L. I. Schiff,
期刊:
Review of Scientific Instruments
(AIP Available online 1947)
卷期:
Volume 18,
issue 2
页码: 117-120
ISSN:0034-6748
年代: 1947
DOI:10.1063/1.1740895
出版商: AIP
数据来源: AIP
摘要:
A device is described which was developed for the rapid computation of rays in a medium in which the index of refraction or speed is a function of only one rectangular coordinate. It was used during the war for the computation of sound fields in water in the ray approximation, and hence is called the sonic ray plotter. It could also be applied to the ray approximation solution of the problem of the propagation of radar signals in a stratified atmosphere, since it is possible to transform the curvature of the earth into an additional refractive index that depends only on the height above a plane earth.
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