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Time Series Analysis II

By
Gerard V. Middleton
Gerard V. Middleton
Department of Geology, McMaster University, Hamilton ON L8S4M1, Canada
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Published:
January 01, 1995

Most methods of analysing time series carry out the numerical analysis on the time series itself. This is because the investigator is basically interested in the variable x = f(t) that has actually been measured. But an alternative approach is to suppose that the variable that was measured is merely one of several that might be measured as output from a dynamical system, which might indeed be better characterized using some other variable. For example, fluid converting in a box might be characterized by a probe measuring temperature or velocity at one point in the box, or by some other measurement, as a function of time. If the governing equations for the system are not known, it is also not possible to identify the fundamental variables which should be measured, or even how many of them there are. In this case, one might think that it is impossible to use measurements made on a single, arbitrarily chosen variable to reconstruct any important properties of the full multidimensional system. As we have seen, it is generally not even clear from simply examining the output x, whether or not the system producing x is stochastic or a nonlinear dynamical system of relatively low dimension.

But if, in fact, the signal is a product of a low dimension deterministic system then it turns out that it is possible to reconstruct all the major topological properties of the system, by a technique known as embedding. The basic idea seems to have been discovered independently

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SEPM Short Course

Nonlinear Dynamics and Fractals: New Numerical Techniques for Sedimentary Data

Gerard V. Middleton
Gerard V. Middleton
McMaster University, Hamilton ON
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Roy E. Plotnick
Roy E. Plotnick
University of Illinois, Chicago IL
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David M. Rubin
David M. Rubin
U.S. Geological Survey, Menlo Park CA
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SEPM Society for Sedimentary Geology
Volume
36
ISBN electronic:
9781565762558
Publication date:
January 01, 1995

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