发明名称 |
Three dimensional empirical mode decomposition analysis apparatus, method and article manufacture |
摘要 |
An apparatus and method of analysis for three-dimensional (3D) physical phenomena. The physical phenomena may include any varying 3D phenomena such as time varying polar ice flows. A repesentation of the 3D phenomena is passed through a Hilbert transform to convert the data into complex form. A spatial variable is separated from the complex representation by producing a time based covariance matrix. The temporal parts of the principal components are produced by applying Singular Value Decomposition (SVD). Based on the rapidity with which the eigenvalues decay, the first 3-10 complex principal components (CPC) are selected for Empirical Mode Decomposition into intrinsic modes. The intrinsic modes produced are filtered in order to reconstruct the spatial part of the CPC. Finally, a filtered time series may be reconstructed from the first 3-10 filtered complex principal components.
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申请公布号 |
US6782124(B2) |
申请公布日期 |
2004.08.24 |
申请号 |
US20000729138 |
申请日期 |
2000.11.29 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
GLOERSEN PER |
分类号 |
G06F17/14;(IPC1-7):G06K9/00 |
主分类号 |
G06F17/14 |
代理机构 |
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