EVALUATION OF GPS RECEIVERS FOR AUTOMOTIVE APPLICATIONS

Because a global positioning system (GPS) receiver can provide position and velocity information for an automobile, it is appropriate to select this receiver as one of prime sensors for automotive applications. In this paper, low-cost GPS receivers are evaluated. Evaluation criteria, evaluation tools, and evaluation results are discussed. For automotive applications, items such as position-fix accuracy, direction accuracy, speed accuracy, percentage of position fix, and time of signal requiring are evaluated. Some of these items are particularly important for applications in urban canyon areas. To measure the accuracy of the position, direction, and speed provided by the GPS receiver, a reliable reference base is needed. For rural areas, a differential GPS (DGPS) is a good choice; however, for urban areas, frequent blockage and reflection of satellite signals prevent the use of DGPS as the reference for comparison study. Therefore, for simplicity, a digital map is used as a foundation to build a reference base for the study. As a data collecting vehicle travels through a designated study area, the GPS receiver data is recorded as well as vehicle dead-reckoning data. These dead-reckoning data combined with a digital map are used to generate a reference base so that GPS receiver data collected from more than one receiver during the same trip can be synchronized to compare against the reference base. This study will prove useful to the user interested in selecting a proper GPS receiver for their particular applications.

  • Supplemental Notes:
    • Five volumes of papers and one volume of abstracts comprise the published set of conference materials.
  • Corporate Authors:

    VERTIS

    TORANOMOM 34 MORI BUILDING 1-25-5
    TORANOMON, MINATOKU, TOKYO 105  Japan 
  • Authors:
    • Zhao, Y
  • Conference:
  • Publication Date: 1995-11

Language

  • English

Media Info

  • Pagination: p. 568

Subject/Index Terms

Filing Info

  • Accession Number: 00721141
  • Record Type: Publication
  • Report/Paper Numbers: Volume 2
  • Files: TRIS
  • Created Date: May 27 1996 12:00AM