How Bad Receiver Coordinates Can Affect GPS Timing

Abstract

Many sources of error are possible when GPS is used for time comparisons. Some of these errors have been listed by Lewandowski. Because of the complexity of the system, an error source could have more than one effect. This paper will present theoretical and observational results by offsetting a receiver's coordinates. The calculations show how an error as small as 3 meters in any direction can result in a timing error of more than 10 nanoseconds. The GPS receiver must be surveyed to better than 0.2-meter accuracy for the timing error to be subnanosecond.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1995
Accession Number
ADA494711

Entities

People

  • H. Chadsey

Organizations

  • United States Naval Observatory

Tags

DTIC Thesaurus Topics

  • Altitude
  • Artificial Satellites
  • Cartography
  • Computer Programs
  • Coordinate Systems
  • Errors
  • Geodetic Surveys
  • Global Positioning Systems
  • Grids
  • Latitude
  • Longitude
  • Nanosecond Time
  • Observation
  • Time Intervals
  • World Geodetic System

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space