Two-frequency two-time correlations and spectra for an ionospheric reflection channel

Author

Lin, K.H. ; Yeh, K.C.

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

fYear

1992

fDate

11-14 Oct 1992

Firstpage

301

Abstract

A wideband HF oblique experiment over the ionospheric reflection channel has been conducted. The experiment measures the complex transfer function simultaneously at six frequencies selected from 800 discrete frequencies in the range of 5 to 15 MHz in the west-east path 1400 km long. Based on the measured transfer function, the two-frequency two-time correlation function and the power spectral density are computed. Various statistics, such as correlation time and correlation bandwidth are deduced, and their evolution with time is studied

Keywords

correlation methods; electromagnetic wave reflection; ionospheric electromagnetic wave propagation; radiowave propagation; spectral analysis; telecommunication channels; 1400 km; 5 to 15 MHz; HF; complex transfer function; correlation bandwidth; correlation time; ionospheric reflection channel; power spectral density; statistics; two-frequency two-time correlation function; wideband HF oblique experiment; Broadband antennas; Density measurement; Fading; Frequency measurement; Pulse measurements; Reflection; Statistics; Transfer functions; Transmitters; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1992. MILCOM '92, Conference Record. Communications - Fusing Command, Control and Intelligence., IEEE

Conference_Location

San Diego, CA

Print_ISBN

0-7803-0585-X

Type

conf

DOI

10.1109/MILCOM.1992.244068

Filename

244068