Periodogram Processing:Wavelet and Cepstral Thresholding Approaches - Couverture souple

Venkatanarayana, Moram; Jayachandra Prasad, Talari

 
9783639713466: Periodogram Processing:Wavelet and Cepstral Thresholding Approaches
Couverture souple
ISBN 10 : 363971346X ISBN 13 : 9783639713466
Editeur : Scholars' Press, 2014

Synopsis

The book provides an introduction to Nonparametric spectral estimation. The periodogram is the basic nonparametric PSD estimation method. It is not consistent due to erratic fluctuations in its spectrum. The technique of averaging or smoothing has been proposed to reduce variance of the periodogram. However, there is a tradeoff between the bias and the variance. In this book, wavelet thresholding and cepstrum thresholding approaches are utilized for processing the periodogram. Several data independent and dependent thresholding schemes are discussed to achieve variance reduction in power spectrum. Modified cepstrum is presented and applied to MST radar data to improve visibility in dopper profile. its performance is in agreement with that of NARL Atmosperic Data Processor.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

The book provides an introduction to Nonparametric spectral estimation. The periodogram is the basic nonparametric PSD estimation method. It is not consistent due to erratic fluctuations in its spectrum. The technique of averaging or smoothing has been proposed to reduce variance of the periodogram. However, there is a tradeoff between the bias and the variance. In this book, wavelet thresholding and cepstrum thresholding approaches are utilized for processing the periodogram. Several data independent and dependent thresholding schemes are discussed to achieve variance reduction in power spectrum. Modified cepstrum is presented and applied to MST radar data to improve visibility in dopper profile. its performance is in agreement with that of NARL Atmosperic Data Processor.

Biographie de l'auteur

M.Venkatanarayana is working as an Associate Professor in ECE at KSRMCE,Kadapa,A.P.,India.He received his PhD in ECE faculty from JNTUA,Anantapuram,India.He has 12 years of teaching experience.Dr.T. Jayachandra Prasad is working as the Principal of RGMCET,Nandyal,A.P., India.He has 27 years of teaching experience and published 25 technical papers.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
Scholars' Press
Date d'édition
2014
Langue
anglais
ISBN 10 
363971346X
ISBN 13 
9783639713466
Reliure
Broché
Nombre de pages
144
Coordonnées du fabricant
non disponible
Personne responsable
non disponible