Means for determining the refractive index profile of the atmosp

Details Means for determining the refractive index profile of the atmosp Means for determining the refractive index profile of the atmosp

1976-08-16

1978-06-06

Safourek, Benedict V.

H04B 1700

Patent

active

040939189

ABSTRACT:
In a method for inferring the refractive index profile of the lower atmosphere a signal pattern comprising interference nulls is observed by receiving a signal from a satellite transmitter over a period of time. Hypothetical signal patterns are successively calculated by hypothesizing the validity of different refractive index profiles and compared with the observed signal pattern until one of them matches the observed signal pattern to within a selected limit of error.

REFERENCES:
A Computer-Aided System for Scaling Topside Ionograms - Lockwood, Proceeds of the IEEE, vol. 57, No. 6, Jun. 1969, pp. 986-989.
Effects of Precipitation on 15.3 and 31.65 GHz Earth Space Transmissions With ATS-V Satallite - Ippolitto, Proc. of IEEE, vol. 59, No. 2, Feb. 1971 pp. 189-205.
Microwave Repeater Research - 1948 - pp. 8-11 "Atmospheric Refraction" H. T. Friis, Bell Telephone System Technical Publication.

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