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