Spectral Factorization of Nonstationary Moving Average Processes
نویسندگان
چکیده
منابع مشابه
Dissertation Time - Frequency - Autoregressive - Moving - Average Modeling of Nonstationary Processes
This thesis introduces time-frequency-autoregressive-moving-average (TFARMA) models for underspread nonstationary stochastic processes (i.e., nonstationary processes with rapidly decaying TF correlations). TFARMAmodels are parsimonious as well as physically intuitive and meaningful because they are formulated in terms of time shifts (delays) and Doppler frequency shifts. They are a subclass of ...
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Abstmct-The Wigner-Ville spectrum has been recently introduced as the unique generalized spectrum for time-varying spectral analysis. Its properties are revised with emphasis on its central role in the analysis of second-order properties of nonstationary random signals. We propose here a general class of spectral estimators of the Wigner-Ville spectrum: this class is based on arbitrarily weight...
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ژورنال
عنوان ژورنال: The Annals of Statistics
سال: 1984
ISSN: 0090-5364
DOI: 10.1214/aos/1176346400