%0 Journal Article
%T A Time Synchronization Mechanism and Algorithm Based on Phase Lock Loop<br>基于锁相环的时间同步机制与算法
%A REN Feng-Yuan
%A DONG Si-Ying
%A HE Tao
%A LIN Chuang
%A <br>任丰原
%A 董思颖
%A 何滔
%A 林闯
%J 软件学报
%D 2007
%I 
%X In this paper, the analysis model of computer clock is discussed, and the characteristic of the existing synchronization mechanisms is summarized. Subsequently, a unidirectional reference broadcast synchronization mechanism with low power is developed, and this mechanism can achieve simultaneously the offset compensation and drift compensation. Its implementation algorithm is designed based on the principle of traditional phase locked loop (PLL). In order to avoid introducing the extra hardware, a simple digital PLL is constructed. Finally, the validation is done on the Mica2 experimental platform, and the performance is evaluated and compared with the typical algorithms.
%K wireless sensor network
%K time synchronization
%K phase locked loop
%K clock offset
%K clock drift<br>无线传感器网络
%K 时间同步
%K 锁相环
%K 时钟偏移
%K 时钟漂移
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=5E427D011EC7F3D6&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=0B39A22176CE99FB&sid=965F4E89CD0AFC30&eid=A7AE820C12CC9AD3&journal_id=1000-9825&journal_name=软件学报&referenced_num=19&reference_num=12