Title :
On the Information Time Scale of Geophysical Records in Maximum Entropy Spectral Analysis
Author :
Rovelli, Antonio
Author_Institution :
Istituto Nazionale di Geofisica, Osservatorio Geofisico Centrale, Monte Porzio Catone, Rome, Italy
fDate :
4/1/1982 12:00:00 AM
Abstract :
The length of maximum entropy spectral analysis (MESA) filter M must be such that it contains all, and only, the physical information. A new original, conceptually simple criterion is suggested for estimating M on the basis of intrinsic memory time of the signal that is obtained from the autocovariances ÿt by means of the following quantity: begin{equation*}frac{Sigma_t |phi_t|}{phi_0}.end{equation*} This approach appears particularly suitable when it is applied to geophysical data set.
Keywords :
Entropy; Informatics; Information analysis; Information filtering; Information filters; Sampling methods; Signal analysis; Spectral analysis; Transfer functions;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.1982.350390
