The use of multitaper estimates for spectral proper orthogonal decomposition (SPOD) is explored. Multitaper and multitaper-Welch estimators that discrete prolate spheroidal sequences (DPSS) as data windows are compared to the standard SPOD algorithm exclusively relies on weighted overlapped segment averaging, or Welch's method, estimate cross-spectral density matrix. Two sets turbulent flow dat...

This article is concerned with the identification of autoregressive models exogenous inputs (ARX). Most existing approaches like prediction error minimization and state-space framework are widely accepted utilized to estimate ARX but known deliver unbiased consistent parameter estimates for a correctly supplied guess input-output orders delay. In this paper, we propose novel automated spectral ...