%0 Journal Article
%T Detecting faint variation in signal by synchronization of Duffing system<br>利用Duffing系统的同步识别信号中的微小差别
%A Qin Wei-Yang
%A Su Hao
%A Yang Yong-Feng
%A <br>秦卫阳
%A 苏 浩
%A 杨永峰
%J 物理学报
%D 2008
%I 
%X For nonlinear Duffing system, a derived synchronization system is built and the method is proved. By the synchronization, the faint difference in stimulating signal of Duffing system can be detected. In simulation, when there occurs chaos in the original system, the responses of the original and derived system will exhibit synchronization for identical input signal and non-synchronization for different input signal. When the system is in quasi-periodic motion, the synchronization is still sensitive to the faint variation in the input signal. The simulation results prove the effectiveness of the method.
%K nonlinear system
%K synchronization
%K signal<br>非线性系统，
%K 同步，
%K 信号
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=419A750745325104F2767C9953D0A598&yid=67289AFF6305E306&vid=11B4E5CC8CDD3201&iid=94C357A881DFC066&sid=45CB7E0782363B9E&eid=6ADBE1BF799045B2&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=9