Abstract
In this article we deal with the Arov–Grossman functional model to describe all the solutions of the Covariance Extension Problem for q-variate stationary stochastic processes and we find the density that maximizes the Burg Multivariate Entropy. This description is based on a one-to-one correspondence between the set of all solutions of the Covariance Extension Problem and the set of all contractive analytic functions H from the open unit disk with values on the space of q × q matrices. With this correspondence, the density that maximizes the Burg Multivariate Entropy corresponds to the function H\equiv0. Also, from the information that the Arov–Grossman functional model provides we obtain a version of the Levinson algorithm. The partial autocorrelation coefficient matrices are computed directly from Levinson’s recursions.
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Communicated by Hans G. Feichtinger.
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Marcano, J., Morán, M. The Arov–Grossman Model and the Burg Multivariate Entropy. J. Fourier Anal. Appl. 9, 623–647 (2003). https://doi.org/10.1007/s00041-003-0914-z
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DOI: https://doi.org/10.1007/s00041-003-0914-z