DocumentCode
622913
Title
Analysis of path gain inside tunnels based on FDTD and ray tracing methods
Author
Ching, G.S. ; Tsuda, Kazuhiko ; Kishiki, Yukiko
Author_Institution
Electromagn. Anal. Team, Kozo Keikaku Eng. Inc., Tokyo, Japan
fYear
2013
fDate
20-24 May 2013
Firstpage
644
Lastpage
647
Abstract
Tunnel simulations are important to study the propagation mechanisms inside tunnels. In this work, FDTD and ray tracing methods are used to simulate the path gain for 2 transmitters located inside a rectangular concrete tunnel. The applicability of ray tracing is analyzed by comparing it with results from FDTD. FDTD results with and without object inside the tunnel show that at distances far from the transmitter, the path gain can be approximated with a constant attenuation.
Keywords
finite difference time-domain analysis; radio transmitters; ray tracing; FDTD; constant attenuation; path gain; ray tracing method; rectangular concrete tunnel; transmitter; tunnel simulation; Attenuation; Computational modeling; Finite difference methods; Gain; Mathematical model; Ray tracing; Time-domain analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on
Conference_Location
Hiroshima
Print_ISBN
978-1-4673-4939-0
Type
conf
Filename
6565820
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