Wide-Band UHF Radio Propagation Characteristics in a Tunnel Environment

Authors:
Y. P. Zhang;Y. Hwang;P. C. Ching
Affiliations:
Department of Electronic Engineering, City University of Hong Kong;Department of Electronic Engineering, City University of Hong Kong;Department of Electronic Engineering, The Chinese University of Hong Kong
Venue:
Wireless Personal Communications: An International Journal
Year:
1998

Citing 1
Cited 2

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The effects of antenna directivity on UWB propagation in an underground mining environment

ARP '07 The Fourth IASTED International Conference on Antennas, Radar and Wave Propagation

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Abstract

This paper presents the measured wide-band characteristics of 900 and1800 MHz band radio propagation channels in a tunnel environment formicrocellular and personal communications. The measurements were made usingthe swept frequency technique. The analysis of the average measured powerdelay profiles reveals that the rms time delay spread is less than 25 nswhen the tunnel is empty and can be as large as 103 ns when the tunnel isblocked by vehicles.