This paper concerns the identification of nonlinear discrete causal systems that can be approximated with the Wiener–Volterra series. Some advances in the efficient use of Lee–Schetzen (L–S) method are presented, which make practical the estimate of long memory and high order models. Major problems in L–S method occur in the identification of diagonal kernel elements. Two approaches have been considered: approximation of gridded data, with interpolation or smoothing, and improved techniques for diagonal elements estimation. A comparison of diagonal elements esti- mated, with different methods has been shown with extended tests on fifth order Volterra systems.

Advances in Lee-Schetzen method for Volterra filter identification / Orcioni, Simone; Pirani, M.; Turchetti, Claudio. - In: MULTIDIMENSIONAL SYSTEMS AND SIGNAL PROCESSING. - ISSN 0923-6082. - STAMPA. - 16(3):(2005), pp. 265-284. [10.1007/s11045-004-1677-7]

Advances in Lee-Schetzen method for Volterra filter identification

ORCIONI, Simone;PIRANI M.;TURCHETTI, Claudio
2005-01-01

Abstract

This paper concerns the identification of nonlinear discrete causal systems that can be approximated with the Wiener–Volterra series. Some advances in the efficient use of Lee–Schetzen (L–S) method are presented, which make practical the estimate of long memory and high order models. Major problems in L–S method occur in the identification of diagonal kernel elements. Two approaches have been considered: approximation of gridded data, with interpolation or smoothing, and improved techniques for diagonal elements estimation. A comparison of diagonal elements esti- mated, with different methods has been shown with extended tests on fifth order Volterra systems.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/53147
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