SIGNAL PROCESSOR FOR A NONCONTACT SPEED MEASUREMENT SYSTEM

The concept and performance of a new digital signal processor for noncontact, high precision speed and distance measurement of rail-guided vehicles are presented. The measurement procedure is based on the estimation of the time-delay between two signals generated by two optimal sensors located a distance L apart. Due to surface irregularities these signals are random, but nearly identical except for a time delay corresponding to the velocity of the vehicle. The high precision and good dynamical properties of the measuring device are achieved by applying a combination of open- and closed-loop correlation techniques and sophisticated digital signal postprocessing algorithms.

  • Availability:
  • Authors:
    • Bohmann, J
    • Meyr, H
    • Peters, R
    • Spies, G
  • Publication Date: 1984-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00389795
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Oct 30 1984 12:00AM