Modeling RF Propagation in Tunnels

Details

• Personal Author:
  Jacksha R ; Plass T ; Waynert J ; Zhou C
• Description:
  As mandated by the 2006 Mine Improvement and New Emergency Response (MINER) Act, many underground coal mines have installed UHF radio systems to provide communications between personnel on the surface and underground. In an effort to better understand UHF signal propagation in tunnel environments, we made radio signal attenuation measurements in concrete tunnels at frequencies of 455 MHz, 915 MHz, 2.45 GHz, and 5.8 GHz. In this paper, a ray tracing method is used to model the channel. Although the tunnel has an arched roof, the model describes the propagation behavior very well using a rectangular tunnel with the same width. The measured data verify the ability of the ray tracing model to predict radio frequency propagation at all the four frequencies. In addition, the propagation constants for the different frequencies are investigated and shown to be consistent with the measured values. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Mining Occupational Health Safety
• Keywords:
  Attenuation Constant Author Keywords: Waveguide Behavior Coal-mining Mining-industry Models Radio-waves Ray Tracing Tunneling Tunnel Propagation Underground-mining

  More +
• Series:
  Mining Publications
• ISBN:
  9781467353151
• ISSN:
  1522-3965
• Publisher:
  IEEE Antennas and Propagation Society
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Florida ; OSHA Region 3 ; OSHA Region 4 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OMSHR - Office of Mine Safety and Health Research
• Topic:
  Workplace Safety & Health
• Location:
  North America
• NIOSHTIC Number:
  nn:20043213
• Citation:
  2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, July 7-13, 2013, Orlando, Florida. Piscataway, NJ: IEEE Antennas and Propagation Society (AP-S) and the U.S. National Committee of the International Union of Radio Science (USNC-URSI), 2013 Jul; :1916-1917
• Email:
  czhou@cdc.gov
• Federal Fiscal Year:
  2013
• NORA Priority Area:
  Mining
• Peer Reviewed:
  False
• Source Full Name:
  2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, July 7-13, 2013, Orlando, Florida
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:695cf4ac9bec84a12eefb3998cfb6c0e2b806eb727a7f7443e4a195efca09a5b4ff2dad72a45e991cece13b3f3c6ad6d08bf97c2781b443639aa8e357a5bc709
• Download URL:
  https://stacks.cdc.gov/view/cdc/228001/cdc_228001_DS1.pdf
• File Type:
  [PDF - 134.36 KB ]