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Sadhana : Volume 42

Sadhana : Volume 41

Sadhana : Volume 23, Issue 5-6, October 1998

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Sadhana : Volume 23, Issue 2, April 1998

Sadhana : Volume 23, Issue 1, February 1998

Foreword

Parameter estimation using a sensor array in a Ricean fading channel

Spatial smoothing with uniform circular arrays

Region-of-interest reconstruction from noisy projections using fractal models and Wiener filtering

Rotational invariance of two-level group codes over dihedral and dicyclic groups

Power spectrum estimation of complex signals and its application to Wigner-Ville distribution: A group delay approach

Asymptotic equivalence of some adaptive biquad notch filters

Convergence and bias in the LSG algorithm for adaptive lattice filters

I-Q imbalance correction in time and frequency domains with application to pulse doppler radar

Interpolation of erasure bursts via cosine-modulated filterbanks

Comparative performance analysis of versions of TCP in a local network with a mobile radio link

Sadhana : Volume 22

Power spectrum estimation of complex signals and its application to Wigner-Ville distribution: A group delay approach

Content Provider	Springer Nature Link
Author	Narasimhan, S V Plotkin, E I Swamy, M N S
Copyright Year	1998
Abstract	In this paper, a method of estimating the power spectrum of a complex signal based on the Group Delay function (GD) is proposed and also applied to the Wigner-Ville Distribution (WVD) to reduce the ripple effect due to the truncation of the autocorrelation sequence. The proposed method is realised by the GD for a complex signal and the modified GD concept. This extends the performance advantages of the modified GD applicable to a real signal, to a complex one. Further, its application to WVD, reduces the truncation/ripple effect without sacrificing any frequency resolution, as nocommon window function is used. Significant improvement in performance, in terms of reduction in variance without any compromise on resolution and higher noise immunity, has been found over those of the periodogram and windowed WVD.
Starting Page	57
Ending Page	71
Page Count	15
File Format	PDF
ISSN	02562499
Journal	Sadhana
Volume Number	23
Issue Number	1
e-ISSN	09737677
Language	English
Publisher	Springer India
Publisher Date	1998-01-01
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Complex signals power spectrum estimation group delay approach Wigner-Ville distribution Gibb’s ripple effect Engineering
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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Power spectrum estimation of complex signals and its application to Wigner-Ville distribution: A group delay approach

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