Stochastic Modelling as a Tool for Seismic Signals Segmentation

Figure 14

The application of the discussed methods to real dataset containing several seismic events. The final segments have been marked by using bold red-dashed curves. (a) The application of the smoothing procedure used for segmentation purposes based on statistics. The grey curve depicts the nonsmoothed segments. (b) The application of the smoothing procedure to the vector of probabilities of being in the second regime with the boundary threshold set to 0.4. The grey curve denotes the nonsmoothed vector of probabilities. (c) Sequence of the test statistics , where the short and long time windows are equal to 0.3 s and 1.2 s, respectively; the activation and deactivation thresholds correspond to 1.1 and 0.8, respectively.

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(b)

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