000010285 001__ 10285
000010285 005__ 20141205155711.0
000010285 04107 $$aeng
000010285 046__ $$k2008-10-12
000010285 100__ $$aHuang, Tian-Li
000010285 24500 $$aThe Orthogonal Hilbert-Huang Transform and Its Application in Earthquake Motion Recordings Analysis

000010285 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010285 260__ $$b
000010285 506__ $$arestricted
000010285 520__ $$2eng$$aBased on the numerical simulation, the problem that the intrinsic mode functions (IMFs) decomposed by the empirical mode decomposition (EMD) in Hilbert-Huang transform (HHT) are not exactly orthogonal is presented. A new method based on the Gram-Schmidt orthogonalization method referred as the orthogonal empirical mode decomposition (OEMD) is proposed and the complete orthogonal intrinsic mode functions (OIMFs) are attained. The method is validated through the decomposition of a typical time history and demonstrated through the El Centro earthquake recording. The comparison between the Hilbert spectrum, the Hilbert marginal spectrum and the orthogonal Hilbert spectrum, the orthogonal Hilbert marginal spectrum of the El Centro earthquake recording showed that the latter can more faithfully and quantitatively characterize the signal energy distribution at different frequency components.

000010285 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010285 653__ $$aOrthogonality, empirical mode decomposition, intrinsic mode function, Hilbert-Huang transform, Earthquake motion recording analysis

000010285 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010285 720__ $$aHuang, Tian-Li$$iRen, Wei-Xin$$iLou, Meng-Lin
000010285 8560_ $$ffischerc@itam.cas.cz
000010285 8564_ $$s272774$$uhttps://invenio.itam.cas.cz/record/10285/files/02-0059.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 02-0059.
000010285 962__ $$r9324
000010285 980__ $$aPAPER