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Refraction of radio waves in arbitrary atmosphere-ray-tracing picture

Content Provider	IEEE Xplore Digital Library
Author	Wong, Ming S.
Copyright Year	1952
Abstract	A development following Hartree, etc., is carried out of ray tracing using REAC differential analyzer. Ray families, on 2k-inch by 32-inch paper, are obtained for an atmosphere with a single n profile (index of refraction versus altitude curve), and for an atmosphere with three n profiles over the region of interest. The n profiles used were measured up to 10,000-foot altitude. The variation in radio field strength with separation between airplanes as measured in a recent air-to-air propagation flight is correlated with a variation or ray density based on index of refraction data taken during the flight. This was a flight which encountered a radio hole followed by its anti-hole (region of erulanced and interfering signals) within the geometrical horizon, and then a second hole and anti-hole at an anomalously large range beyond the horizon. The second anti-hole is accounted for by an anomalous-ranee layer near the ground and one in which the refractive gradient has a negative value nearly equal to l/(radius of earth}. In some respects the correlation is striking between ray-tracing picture and observed radio data.
Starting Page	36
Ending Page	36
Page Count	1
File Size	107632
File Format	PDF
ISSN	21680639
Volume Number	2
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1952-03-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Atmospheric measurements Ray tracing Indexes Atmospheric waves Airplanes Earth
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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