Measurement of RF Propagtation around Corners in Underground Mines and Tunnels

Details

• Journal Article:
  Trans Soc Min Metall Explor Inc
• Personal Author:
  Jacksha, R. ; Zhou, C.
• Description:
  This paper reports measurement results for radio frequency (RF) propagation around 90° corners in tunnels and underground mines, for vertically, horizontally and longitudinally polarized signals. Measurements of signal power attenuation from a main entry into a crosscut were performed at four frequencies - 455, 915, 2450 and 5800 MHz - that are common to underground radio communication systems. From the measurement data, signal power loss was determined as a function of signal coupling from the main entry into the crosscut. The resultant power loss data show there are many factors that contribute to power attenuation from a main entry into a crosscut, including frequency, antenna polarization and cross-sectional entry dimensions.
• Subjects:
  Mines Occupational Health Radio Frequency
• Keywords:
  Author Keywords: Radio Propagation; Wireless Communication; Waveguide; Corner Diffraction Mining-industry; Underground Mining; Radio-waves; Sound-propagation; Communication-systems; Tunneling;
• Source:
  Trans Soc Min Metall Explor Inc. 340(1):30-37
• Pubmed ID:
  28626351
• Pubmed Central ID:
  PMC5472338
• Document Type:
  Text
• Funding:
  CC999999/Intramural CDC HHSUnited States/
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 10 ; OSHA Region 3 ; Pennsylvania ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SMRD - Spokane Mining Research Division ; PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  22 pdf pages
• Volume:
  340
• NIOSHTIC Number:
  nn:20049255
• Federal Fiscal Year:
  2016
• Peer Reviewed:
  True
• Collection(s):
  CDC Public Access National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:eea05d7a2d1d61a4cdcdda8a8da3b5e4a5466c84758349437a7216f8b612dcb7e735bb0b34b01ccb767ed0348bc6ce6debd10b6f71eb0d803c7be7be7ddaa0f3
• Download URL:
  https://stacks.cdc.gov/view/cdc/46801/cdc_46801_DS1.pdf
• File Type:
  [PDF - 958.17 KB ]