SVD analysis of the magnetospheric AE index time series and comparison with low-dimensional chaotic dynamics
作者: M. A. AthanasiuG. P. Pavlos
刊名: Nonlinear Processes in Geophysics, 2001, Vol.8 (1/2), pp.95-125
来源数据库: Directory of Open Access Journals
原始语种摘要: The singular value decomposition (SVD) analysis is used at different stages in this paper in order to extract useful information concerning the underlying dynamics of the magnetospheric AE index. As a frame of reference we use the dynamics of the Lorenz system perturbed by external noise, white or colored. One of the critical results is that the colored noise can be differentiated from the white noise when we study their perturbation upon the eigenvalue spectrum of the trajectory matrix, the SVD reconstructed components of the original time series and other characteristics. This result is used in order to conclude the existence of strong component of colored noise included in the magnetospheric AE index time series. Moreover, the study of the SVD reconstructed components of the original...
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关键词翻译
关键词翻译
  • SVD Safe Vertical Distance
  • magnetospheric 磁性层的
  • colored 有色的
  • dimensionality 量纲
  • reconstructed 修]重构[建
  • series 
  • noise 噪声
  • singular 奇异的
  • dynamics 动力学
  • external 外部的