scispace - formally typeset
Journal ArticleDOI

Detection of changes of signal structure by using the Wigner-Ville spectrum

Wolfgang Martin, +1 more
- 01 Apr 1985 - 
- Vol. 8, Iss: 2, pp 215-233
TLDR
In this article, a detection procedure of such a segmentation based on the pseudo-Wigner estimates is presented, which is known to be uncorrelated estimates of the Wigner-Ville spectrum for neighboured, appropriately spaced frequencies.
About: 
This article is published in Signal Processing.The article was published on 1985-04-01. It has received 60 citations till now. The article focuses on the topics: White noise & Detector.

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Citations
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Journal ArticleDOI

Linear and quadratic time-frequency signal representations

Franz Hlawatsch, +1 more
- 01 Apr 1992 - 
TL;DR: A tutorial review of both linear and quadratic representations is given, and examples of the application of these representations to typical problems encountered in time-varying signal processing are provided.
Journal ArticleDOI

Wigner-Ville spectral analysis of nonstationary processes

W. Martin, +1 more
- 01 Dec 1985 - 
TL;DR: A general class of spectral estimators of the Wigner-Ville spectrum is proposed: this class is based on arbitrarily weighted covariance estimators and its formal description corresponds to the generalclass of conjoint time-frequency representations of deterministic signals with finite energy.
Journal ArticleDOI

Time-frequency parameters of the surface myoelectric signal for assessing muscle fatigue during cyclic dynamic contractions

Paolo Bonato, +3 more
- 01 Jul 2001 - 
TL;DR: Results indicate that the variability of the instantaneous median frequency is related to the repeatability of the biomechanics of the exercise, and a novel approach is proposed for calculating spectral parameters from the surface myoelectric signal during cyclic dynamic contractions.
Journal ArticleDOI

Segmentation of textured images and Gestalt organization using spatial/spatial-frequency representations

T. R. Reed, +1 more
- 01 Jan 1990 - 
TL;DR: Experimental results in the area of texture segmentation and Gestalt grouping using the Wigner distribution are presented, proving the feasibility of using s/sf representations for low-level (early, preattentive) vision.
Journal ArticleDOI

Time/frequency mapping of the heart rate, blood pressure and respiratory signals.

Peter Novak, +1 more
- 01 Mar 1993 - 
TL;DR: The discrete Wigner distribution was implemented for the time/frequency mapping of variations of R-R interval, blood pressure and respiratory signals and it was shown that the DWD follows well the instantaneous changes of spectral content of cardiovascular and respiratory messages which characterise the dynamics of autonomic nervous system responses.
References
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Journal Article

Spectral Analysis and Time Series

M. B. Priestley
TL;DR: In this article, the authors introduce the concept of Stationary Random Processes and Spectral Analysis in the Time Domain and Frequency Domain, and present an analysis of Processes with Mixed Spectra.
Journal ArticleDOI

Some Comments on Cp

Colin L. Mallows
- 12 Mar 2012 - 
TL;DR: In this article, the typical configuration of a Cp plot when the number of variables in the regression problem is large and there are many weak effects is studied, and a particular configuration that is very commonly seen can arise in a simple way.
Journal Article

Some comments on C_p

C. L. Mallows
- 01 Jan 1973 - 
BookDOI

Die physiologische Uhr

Erwin Bünning
Journal ArticleDOI

Automatic Smoothing of the Log Periodogram

Grace Wahba
- 01 Mar 1980 - 
TL;DR: In this article, the authors developed an objective optimum smoothing procedure for an estimate of the log spectral density, based on smoothing the log periodogram with a smoothing spline.