%0 Journal Article
%T Onset point identification of single_channel seismic signal based on wavelet packet and the AR model<br>基于小波包分解及AR模型的单通道地震波信号初至点检测
%A Liu DaiZhi
%A Wang RenMing
%A Li XiHai
%A Liu ZhiGang
%A <br>刘代志
%A 王仁明
%A 李夕海
%A 刘志刚
%J 地球物理学报
%D 2005
%I 
%X Distinguishing onset points of seismic signals is important in the automatic identification of underground nuclear explosions and natural earthquakes. This paper presents a method of onset point detection of single channel seismic signals based on wavelet packet and the AR model. Theoretical analysis and test of seismic signals indicate that this method is strongly self_adaptive to seismic signals and can detect the position of the onset in seismic trace precisely.
%K Nuclear explosion
%K Earthquake
%K Onset point
%K Wavelet packet
%K AR model<br>核爆炸
%K 地震
%K 初至点
%K 小波包
%K AR模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=1171656022F6609D&yid=2DD7160C83D0ACED&vid=B6DA1AC076E37400&iid=94C357A881DFC066&sid=4759DE41370E2E7A&eid=47D3259DD85FC8F7&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=7&reference_num=17