简介:ThispaperisconcernedwiththeclocksynchronizationproblemforIEEE1588networks.First,thesynchronizationerrorisdescribedasaboundeddisturbance,andalinearextendedstateobserver(LESO)isdesignedtoestimatethelumpeddisturbanceinducedbytheoscillatorfrequencydriftandtimestampsquantizationerrors.Then,thelumpeddisturbanceiscompensatedbytheproposedcontroller.Theproposedapproachhastheadvantagethatit'sabletodealwithnon-Gaussiandisturbanceinducedbyaccumulatedquantizationerrors.SimulationsareDrovidedtovalidatetheeffectivenessandsuperiorityoftheproposedapproach.