Title :
A two-way time transfer experiment via ECS-1 using the MITREX modem
Author :
Kirchner, Dieter ; Ressler, Hubert ; Riedler, Willibald ; Söring, Armin
Author_Institution :
Inst. fuer Nachrichtentech. und Wellenausbreitung, Tech. Univ. Graz, Austria
fDate :
9/1/1988 12:00:00 AM
Abstract :
In the summer of 1986, a two-way time transfer experiment using pseudonoise coded signals was carried out between the Technical University of Graz, Austria, and the Fernmelde-technisches Zentralamt in Darmstadt, West Germany, via the European Communication Satellite ECS-1 operating in the 11-/14-GHz bands. Uncertainties on the order of 1 ns were obtained with Earth stations´ EIRPs (effective isotropic radiated power) of 52 dBw, a G/T (gain-to-noise-temperature) of 22 dB/K, and sharing the satellite transponder with a television signal. The peak-to-peak fluctuations of the round-trip delays of the Earth stations turned out to be below 1 ns
Keywords :
measurement standards; microwave links; modems; satellite relay systems; time measurement; 1 ns; 11 GHz; 14 GHz; ECS-1; European Communication Satellite; MITREX modem; effective isotropic radiated power; gain-to-noise-temperature; microwave time and ranging experiment; peak-to-peak fluctuations; pseudonoise coded signals; round-trip delays; two-way time transfer experiment; Artificial satellites; Clocks; Counting circuits; Delay; Frequency shift keying; Modems; Satellite broadcasting; Satellite ground stations; Time measurement; Transponders;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
