Title :
Delay calibration method for precise and accurate two way satellite time and frequency transfer
Author :
Imae, M. ; Aida, M. ; Gotoh, T. ; Shibuya, Y. ; Kurihara, N.
Author_Institution :
Commun. Res. Lab., Tokyo, Japan
Abstract :
The two way satellite time and frequency transfer (TWSTFT) is one of the most accurate and precise time transfer techniques. But there are possibilities of nanosecond level time transfer errors due to delay variations, mainly caused by temperature variations. This paper reports a measurement technique under development at the Communications Research Laboratory using a multi-channel time transfer modem.
Keywords :
calibration; delays; frequency measurement; measurement errors; modems; satellite communication; thermal stability; time measurement; transfer standards; TWSTFT time transfer technique; delay calibration method; earth station delays; multi-channel time transfer modems; precise/accurate two-way satellite time/frequency transfer; temperature variation generated delay variations; time transfer errors; Antenna measurements; Artificial satellites; Calibration; Delay effects; Demodulation; Frequency; Low-noise amplifiers; Modems; Satellite ground stations; Temperature;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034916
