Improvement in short wave fade detection /
David N. Gaunt.

Description

Main Author

Gaunt, David N.

Related Names

Air Force Cambridge Research Laboratories (U.S.)

Language(s)

English

Published

Hanscom AFB, Massachusetts : Air Force Cambridge Research Laboratories, Air Force Systems Command, United States Air Force, 1975.

Subjects

Shortwave radio.
Electromagnetic waves.
Sudden ionospheric disturbances.

Summary

Certain types of solar emission produce changes in the ionosphere (identified by Short Wave Fades (SWF)) that adversely affect the efficiency of radio communications. The detection of SWF is in principle a relatively simple approach to the measurement of ionospheric changes and the causative solar emissions. In practice, however, numerous factors may compromise the value of SWF data. An improved Short Wave Fade detection system is described which by techniques of frequency sweeping, reduction of unwanted signals by clipping, and enhancement of desired information by integration makes reliable, quantitative, absorption, and spectral information possible.

Note

"Ionospheric Physics Laboratory Project 4643."
"ADA013787 (from http://www.dtic.mil)."
"8 May 1975."

Physical Description

15 pages : illustrations ; 28 cm.

Locate a Print Version

Find in a library
Find in a library

Viewability