A flatness-based generalized optimization approach to spectral estimation
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In the optimization formulation, once the known autocorrelations are fixed as constraints, the objective functional completely characterizes the corresponding method of spectral estimation. After observing that this functional involves a sort of spectral flatness maximization, the relationship between the form of its integrand and the salient trends of the various methods is pointed out. This serves as a basis to propose a generalized optimization approach that encompasses some classical estimators and originates new ones.
CitationNadeu, C., Bertran, M. A flatness-based generalized optimization approach to spectral estimation. "Signal processing", Abril 1990, vol. 19, núm. 4, p. 311-320.