Title :
VLBI clock synchronization
Author :
Counselman, C.C., III ; Shapiro, I.I. ; Rogers, A.E.E. ; Hinteregger, H.F. ; Knight, C.A. ; Whitney, A.R. ; Clark, T.A.
Author_Institution :
Massachusetts Institute of Technology, Cambridge, MA
Abstract :
Atomic clocks at widely separated sites can be synchronized to within several nanoseconds from a few minutes of very-long-baseline interferometry (VLBI) observations, and to within one nanosecond from several hours of such observations.
Keywords :
Clocks; Counting circuits; Delay estimation; Frequency conversion; Frequency synchronization; Noise generators; Noise shaping; Radio interferometry; Shift registers; Space technology;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1977.10793
