Accession Number:

AD0262284

Title:

SOME CHARACTERISTICS OF A SWEPT FREQUENCY INTERFEROMETER FOR 35-65 MC/S

Descriptive Note:

Corporate Author:

KIRUNA GEOPHYSICAL OBSERVATORY (SWEDEN)

Personal Author(s):

Report Date:

1961-02-15

Pagination or Media Count:

1.0

Abstract:

A radio astronomical, swept frequency interferometer was operated to 1 investigate the ionospheric refraction of radiation in the frequency range 35-65 mc, and its dependence on geometrical and time parameters, and 2 investigate angular scintillations in the same frequency range, and other short-time variations in the refraction angle. A theory of the 3-dimensional intensity modulated record of a swept frequency interferometer is discussed. The simple theory assumes a frequency independent interferometer. The more exact theory includes the influence of a frequency dependent hybrid and gives rather complicated equations, which can be solved only in the numerical way. The influence of ground reflections on the observed interference pattern is also discussed. A method of the determination of the ionospheric refraction from swept frequency record is described. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE