Adaptive Spectral Estimation of Locally Stationary Signalsst
نویسنده
چکیده
We introduce a class of non-stationary processes, or signals, that are close to stationary and call them locally stationary. They arise in many applications in seismology, in speech analysis and elsewhere. We show that their local spectral characteristics can be obtained eeciently using an adaptive windowed Fourier transform. We illustrate with some examples from seismology the use of our methods and the accompanying software that we have developed.
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