Title :
Standard time and frequency signal broadcast via INSAT-accuracy improvements using differential mode
Author :
Sen Gupta, A. ; Mathur, B.S.
Author_Institution :
Nat. Phys. Lab., New Delhi, India
Abstract :
We describe the Standard Time & Frequency Signal (STFS) broadcast via the Indian domestic satellite INSAT. Under normal operation it is possible to achieve a synchronisation accuracy of better than /spl plusmn/20 /spl mu/sec. For users with high accuracy requirements we discuss the capability of the STFS broadcast to provide sub-/spl mu/sec accuracy using a differential mode. To our knowledge there is no other existing geostationary satellite based one-way time broadcast with this accuracy level.
Keywords :
frequency measurement; measurement standards; satellite links; synchronisation; time measurement; INSAT; STFS broadcast; differential mode; geostationary satellite; standard frequency signal broadcast; standard time signal broadcast; submicrosecond accuracy; synchronisation accuracy; Bandwidth; Code standards; Decoding; Downlink; Frequency synchronization; Laboratories; Modulation coding; RF signals; Radio broadcasting; Satellite broadcasting;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547329
