Detection of Track Guided Ground Vehicles Using the track as an Electromagnetic Surface Waveguide,

摘要

The importance of vehicle detection and communication in mass transportation systems is discussed along with the advantages of track guided systems and the use of automation. Present and proposed methods of tracked vehicle detection are reviewed. An innovative method is proposed for detecting or communicating with tracked vehicles in which the track is used as an open waveguide. The characteristics of a rail as a communication channel are determined and suggestions for analyzing other parts of the system are discussed. A method of analyzing wavelengths of arbitrary shape and consisting of lossy materials was required. The problem of distinguishing the desired modes from non-physical spurious and other modes is discussed and the complete set of programs is listed and described. History,definitions,and applications of electromagnetic surface waves are reviewed and behavior of two types of surface waves are presented.