The disclosure relates to {HEAD ~ the field} of {TAIL ~ time synchronization} between two geographically separated clocks, such as the stationary clocks of the phasor measurement units of a wide area monitoring system for a power transmission network 
of
The disclosure relates to { HEAD ~ the field } of { TAIL ~ time synchronization } between two geographically separated clocks , such as the stationary clocks of the phasor measurement units of a wide area monitoring system for a power transmission network
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH