By Topic

Precision and accuracy of GPS time transfer

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Lewandowski, W. ; Bur. Int. des Poids et Mesures, Sevres, France ; Petit, G. ; Thomas, C.

The precision of time transfer over intercontinental distances by the Global Positioning System (GPS) common-view method reaches 3-4 ns for a single 13-min measurement, and decreases to 2 ns when averaging several measurements over a period of one day. Such precision can only be achieved by using measured ionospheric delays, precise ephemerides, and a consistent set of station coordinates. The accuracy of GPS time transfer is estimated by using three intercontinental links encircling the Earth to establish a closure condition. It is found that the accuracy is also at the level of a few nanoseconds, and mainly depends on the set of ephemerides which is used for the satellites

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:42 ,  Issue: 2 )