学术
摘 要:
用dbN系列小波对两类具有第二类奇异点的信号进行了数值仿真,通过对两例的多尺度分解,叙述了dbN系列小波正则性与检测效果间的关系,并由此选取了db5为小波基函数对南水北调某地地震反射波资料的同相轴进行了检测,结果表明分析是合理的,方法是可靠的.[著者文摘]
文章出处:
《三峡大学学报：自然科学版》-2007年29卷5期 -464-466页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1672-948X（2007）05-0464-03
Signal Singularity Simulation and Application to Reflected Waves Events Detection
Wei Mingguo（College of Science,China Three Gorges Univ.,Yichang 443002,China）
Abstract:
Two kinds of signal with second singularity point are numerically simulated with dbN series wavelets.The relation between regularity and detection effects for dbN series wavelets is described in detail by two examples of multi-scale wavelet analysis;and certain earthquake reflected waves events data are detected by db5 which is selected to be the wavelet basis function.The result of detection demonstrates that the analysis is rational;and the method is reliable.[著者文摘]
Key words:
simulation of signal singularity;event of reflected waves;wavelet transformation
基金资助:
宜昌市科技攻关基金（SDZZ2004012）
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