Ray tracing studies of multipath fading in the ionospheric HF channel

Author

Västberg, A. ; Lundborg, B.

Author_Institution

Swedish Inst. of Space Phys., Uppsala, Sweden

fYear

1997

fDate

7-10 Jul 1997

Firstpage

30

Lastpage

34

Abstract

The total signal of an ionospheric multipath channel can be calculated by superimposing the amplitudes of the different paths with their proper polarisations and phases. The signal of each path suffers loss due to range of propagation, absorption, focusing due large scale inhomogeneities of the ionosphere and polarisation coupling with the receiving antenna. As each of these types of losses and also the phase path length can be calculated in the geometrical optics approximation, the total signal can be found. The present paper investigates the effect of interference due to multipath propagation through an ionospheric channel perturbed by a travelling ionospheric disturbance (TID). Both the multipath fading and the amplitude in the frequency domain of the channel are presented

Keywords

ray tracing; absorption; amplitudes; focusing; frequency domain; geometrical optics approximation; interference; ionospheric HF channel; ionospheric channel; ionospheric multipath channel; large scale inhomogeneities; multipath fading; multipath propagation; phase; polarisation; propagation; ray tracing studies; travelling ionospheric disturbance;

fLanguage

English

Publisher

iet

Conference_Titel

HF Radio Systems and Techniques, Seventh International Conference on (Conf. Publ. No. 441)

Conference_Location

Nottingham

ISSN

0537-9989

Print_ISBN

0-85296-688-1

Type

conf

DOI

10.1049/cp:19970755

Filename

607548