Title :
Simplified analytical propagation model for railway environments based on uniform theory of diffraction
Author :
He, Ruisi ; Zhong, Z. ; Ai, Bo ; Guan, Ke ; Chen, Ru Shan
Author_Institution :
State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing, China
Abstract :
Proposed is a simplified analytical propagation model in railway environments. A heuristic ray tracing with geometrical optics and uniform theory of diffraction are adopted. Four typical and dominating ray paths that undergo reflections from ground and train roof and diffraction from the corner of the train are considered. The measurements verify that the analytical propagation model works very well in typical railway environments.
Keywords :
geometrical theory of diffraction; radiowave propagation; railway communication; ray tracing; geometrical optics; ground roof reflection; heuristic ray tracing; railway environment; simplified analytical propagation model; train corner diffraction; train roof reflection; uniform theory of diffraction;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.4435