Improvement of the GPS time comparisons by simultaneous relative positioning of the receiver antennas
Abstract
The Global Positioning System, GPS, is widely used for time comparisons between distant laboratories. Over distances of the order of 1000 km or less, the system has the capability of 1 to 2 ns accuracy. However this requires a relative positioning with errors lower than 30 cm. We show that this positioning can be derived from the GPS time comparisons themselves. An example for European laboratories is given.
- Publication:
-
Bulletin Geodesique
- Pub Date:
- December 1989
- DOI:
- 10.1007/BF02519635
- Bibcode:
- 1989BGeod..63..371G
- Keywords:
-
- Autonomous Spacecraft Clocks;
- Global Positioning System;
- Picosecond Pulses;
- Time Signals;
- Error Analysis;
- Geodetic Coordinates;
- Satellite Antennas