Long-term wide-bandwidth channel characteristics and bandwidth-dependent fading for a mid-latitude HF path

Author

Rifkin, R. ; Perry, B.D.

Author_Institution

MITRE Corp., Bedford, MA, USA

fYear

1991

fDate

22-25 Jul 1991

Firstpage

189

Lastpage

193

Abstract

The MITRE wide-bandwidth HF test facility is used to measure the channel characteristics of a west-east 3000 km path from Boulder, CO, to Bedford, MA, USA. A 1 MHz bandwidth direct-sequence pseudo-noise coded probing signal repetitively estimates the channel impulse response over runs lasting several minutes. Owing to the wideband signaling, the receiver can resolve a particular mode and examine it by itself. Several fading statistics are calculated, including standard deviation of the received power, decorrelation time, and fade depth and incremental fade depth at a specified probability of occurrence. In addition, long-term data are obtained for the time-of-arrival drifts of the centroid of the channel impulse response

Keywords

fading; ionospheric electromagnetic wave propagation; radiowave propagation; telecommunication channels; transient response; 1 MHz; 3000 km; Bedford; Boulder; MITRE; USA; bandwidth-dependent fading; centroid arrival time drift; channel impulse response; decorrelation time; direct sequence signal; fading statistics; incremental fade depth; ionospheric radiowave propagation; long-term data; mid-latitude HF path; mode resolution; pseudo-noise coded probing signal; received power; standard deviation; west-east path; wide-bandwidth HF test facility; wide-bandwidth channel;

fLanguage

English

Publisher

iet

Conference_Titel

HF Radio Systems and Techniques, 1991., Fifth International Conference on

Conference_Location

Edinburgh

Type

conf

Filename

175891