Propagation mechanism modelling in the near region of circular tunnels

Briso Rodriguez, Cesar; Guan, Ke; Zhong, Zhangdui y Ai, Bo (2012). Propagation mechanism modelling in the near region of circular tunnels. "Iet Microwaves, Antennas & Propagation", v. 6 (n. 3); pp. 355-360. ISSN 1751-8725. https://doi.org/10.1049/iet-map.2011.0381.

Descripción

Título: Propagation mechanism modelling in the near region of circular tunnels
Autor/es:
  • Briso Rodriguez, Cesar
  • Guan, Ke
  • Zhong, Zhangdui
  • Ai, Bo
Tipo de Documento: Artículo
Título de Revista/Publicación: Iet Microwaves, Antennas & Propagation
Fecha: Febrero 2012
Volumen: 6
Materias:
Escuela: E.U.I.T. Telecomunicación (UPM) [antigua denominación]
Departamento: Ingeniería Audiovisual y Comunicaciones [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (5MB) | Vista Previa

Resumen

Artículo sobre comunicaciones ferroviarias. Abstract: Along with the increase in operating frequencies in advanced radio communication systems utilised inside tunnels, the location of the break point is further and further away from the transmitter. This means that the near region lengthens considerably and even occupies the whole propagation cell or the entire length of some short tunnels. To begin with, this study analyses the propagation loss resulting from the free-space mechanism and the multi-mode waveguide mechanism in the near region of circular tunnels, respectively. Then, by conjunctive employing the propagation theory and the three-dimensional solid geometry, a general analytical model of the dividing point between two propagation mechanisms is presented for the first time. Moreover, the model is validated by a wide range of measurement campaigns in different tunnels at different frequencies. Finally, discussions on the simplified formulae of the dividing point in some application situations are made. The results in this study can be helpful to grasp the essence of the propagation mechanism inside tunnels.

Más información

ID de Registro: 15326
Identificador DC: http://oa.upm.es/15326/
Identificador OAI: oai:oa.upm.es:15326
Identificador DOI: 10.1049/iet-map.2011.0381
URL Oficial: http://digital-library.theiet.org/content/journals/10.1049/iet-map.2011.0381
Depositado por: Memoria Investigacion
Depositado el: 26 Sep 2013 15:33
Ultima Modificación: 21 Abr 2016 15:23
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM