HIGH SPEED GROUND TRANSPORTATION COMMUNICATIONS SYSTEM

The report contains the results of an investigation concerning the communication aspects of a high speed ground transportation (HSGT) system. The study was restricted to the portion of the frequency spectrum between 30 and 65 GHz. In contrast to communication systems which operate at lower frequencies, this millimeter-wave portion of the spectrum makes available to the system designer very large bandwidths, of the order of several gigahertz, and techniques for insuring system isolation and freedom from interference. The characteristics and feasibility of two types of communication system were considered. It is concluded that, on a performance basis, a system employing a leaky wavequide transmission medium is the better of the two; however, if cost is the overriding determinant, a communication system which employs atmospheric propagation should be considered. (Author)

• Corporate Authors:

  Hughes Research Laboratories

  Electron Device Physics Department
  Malibu, CA  United States 
• Authors:
  • Lundgren, R E
  • Nudd, G R
• Publication Date: 1969-11

Media Info

• Pagination: 268 p.

Subject/Index Terms

• TRT Terms: Communications; Intelligent transportation systems; Waveguides
• Old TRIS Terms: Advanced systems
• Subject Areas: Operations and Traffic Management; Railroads;

Filing Info

• Accession Number: 00039171
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt
• Contract Numbers: DOT-FR-09-0007
• Files: TRIS
• Created Date: Nov 24 1973 12:00AM