Wavelet-based detection and classification of roof-corner pressure transients

被引:1
|
作者
Pettit, CL [1 ]
Jones, NP
Ghanem, R
机构
[1] USAF, Res Lab, Air Vehicles Directorate, Wright Patterson AFB, OH 45433 USA
[2] Johns Hopkins Univ, Dept Civil Engn, Baltimore, MD 21218 USA
关键词
wavelet transform; transients; detection; classification;
D O I
10.12989/was.2000.3.3.159
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Many practical time series, including pressure signals measured on roof-corners of low-rise buildings in quartering winds, consist of relatively quiescent periods interrupted by intermittent transients. The dyadic wavelet transform is used to detect these transients in pressure time series and a relatively simple pattern classification scheme is used to detect underlying structure in these transients. Statistical analysis of the resulting pattern classes yields a library of signal "building blocks", which are useful for detailed characterization of transients inherent to the signals being analyzed.
引用
收藏
页码:159 / 175
页数:17
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