Title :
Radio propagation analysis in mines and tunnels based on FDTD
Author :
Chenming Zhou ; Jacksha, Ronald
Author_Institution :
Nat. Inst. for Occupational Safety & Health, Pittsburgh, PA, USA
Abstract :
In this paper, a Finite Difference Time Domain (FDTD) - based full wave method is applied to model radio propagation in tunnels. The simulation results based on the FDTD method are compared to ray tracing and modal methods at 455 and 915 MHz for both vertical and horizontal polarizations and show good agreement. It is also shown that the simulation predictions based on all three methods agree well with the results as measured in a real tunnel.
Keywords :
VHF radio propagation; finite difference time-domain analysis; FDTD method; finite difference time domain-based full wave method; frequency 455 MHz; frequency 915 MHz; horizontal polarizations; radio propagation analysis; vertical polarizations; Finite difference methods; Frequency measurement; Loss measurement; Propagation losses; Radio propagation; Ray tracing; Time-domain analysis; FDTD; ray tracing; tunnel propagation; waveguides;
Conference_Titel :
Applied Computational Electromagnetics (ACES), 2015 31st International Review of Progress in
Conference_Location :
Williamsburg, VA
