Spatial correlation function of the sky wave for use in space diversity reception

Author

Ghuniem, Atef M. ; Osman, Nasser K.

Author_Institution

Fac. of Eng., Suez Canal Univ., Port Said, Egypt

fYear

1999

fDate

23-25 Feb 1999

Abstract

Fading is a serious problem in HF communication. It is caused primarily by the random irregularities in the refractive index of the ionosphere. One of the successful solutions to this problem is the space diversity reception. In this work the spatial correlation function of the received signal fluctuations is derived using geometric optics and single scattering approximations. Then the correlation function is used to calculate the required distance between the two receiving antennas to obtain uncorrelated signals. The results provide the base for the optimum design of the space diversity system

Keywords

HF radio propagation; antenna arrays; diversity reception; electromagnetic wave scattering; fading; geometrical optics; ionospheric electromagnetic wave propagation; receiving antennas; 9.5 MHz; HF communication; distance; fading; geometric optics; optimum design; random irregularities; received signal fluctuations; receiving antennas; refractive index; single scattering approximations; sky wave; space diversity reception; spatial correlation function; Diversity reception; Fading; Fluctuations; Geometrical optics; Ionosphere; Optical refraction; Optical scattering; Optical variables control; Receiving antennas; Refractive index;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Science Conference, 1999. NRSC '99. Proceedings of the Sixteenth National

Conference_Location

Cairo

Print_ISBN

977-5031-62-1

Type

conf

DOI

10.1109/NRSC.1999.760943

Filename

760943