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Narrowband acoustic doppler volume backscattering signal-part II: spectral centroid estimation
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2002 (engelsk)Inngår i: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 50, nr 10, s. 2656-2660Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper proposes a novel algorithm to estimate the time-varying spectral centroid of the narrowband Doppler volume backscattering signal. It is constructed in a semi-parametric way, that is, modeling parametrically the local narrowband evolutionary spectrum using an AR(2) and nonparametrically adapting its time-varying coefficients using the wavelet shrinkage. The improved performance is gained by the underlying linear prediction function of the AR(2) and the minimax optimality of the unknown smoothness adaptation of the wavelet shrinkage procedure.

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IEEE , 2002. Vol. 50, nr 10, s. 2656-2660
Emneord [en]
Acoustic Doppler effect, finite duration signal
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Identifikatorer
URN: urn:nbn:se:bth-10128DOI: 10.1109/TSP.2002.804072ISI: 000178713200004Lokal ID: oai:bth.se:forskinfo3B36B8918FE3279DC1256C6F001DEEB5OAI: oai:DiVA.org:bth-10128DiVA, id: diva2:838168
Tilgjengelig fra: 2012-09-18 Laget: 2002-11-12 Sist oppdatert: 2017-12-04bibliografisk kontrollert

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