Title :
Long term and long distance GPS time transfer corrected by measured ionospheric delay
Author :
Imae, Michito ; Kawai, Eiji ; Aida, Masanori
Author_Institution :
Kashima Space Res. Center, Ibaraki, Japan
fDate :
4/1/1993 12:00:00 AM
Abstract :
In order to optimize GPS (Global Positioning System) time transfer over an intercontinental baseline (France to Japan, about 8800 km), the authors supplement commercial C/A code receivers with dual frequency codeless receivers designed to measure directly the ionospheric delay of the GPS signal. Using data accumulated over a period of two and a half years, it is shown that the long-term precision of time transfer can be improved through the use of these ionospheric measurements
Keywords :
delays; ionospheric electromagnetic wave propagation; measurement standards; radiowave propagation; satellite relay systems; time measurement; 8800 km; C/A code receivers; France; GPS time transfer; Japan; dual frequency codeless receivers; intercontinental baseline; ionospheric measurements; measured ionospheric delay; satellite ephemerides error; Delay effects; Error correction; Extraterrestrial measurements; Frequency measurement; Global Positioning System; Position measurement; Receiving antennas; Satellite antennas; Satellite broadcasting; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
