نتایج جستجو برای: cross correlation

تعداد نتایج: 844417  

2014
Adam KOTOWSKI

The paper presents comparison of results of impulse response spectral analysis that has been obtained using a method based on cross-correlation with results obtained using classical FFT. The presented non-Fourier method is achieved by correlating the analyzed signal and reference single-harmonic signals and using Hilbert transform to obtain an envelope of cross-correlation. The envelope of cros...

2010
Gertraud Fenk-Oczlon August Fenk

Basic language-inherent tempo cannot be isolated by the current metrics of speech rhythm. Here we propose the number of syllables per intonation unit as an appropriate measure, also for large-scale comparisons between languages. Applying it to an extended sample of in the meantime 51 languages has not only corroborated our previously reported negative cross-linguistic correlation of this metric...

2009
C. A. MURTHY D. Dutta Majumder

The need for a measure of correlation between two membership functions is stated. The properties that the correlation measure may possess are examined . A measure of correlation is defined on the basis of those properties. The definition is extended to the cases when (a) the domain is finite and (b) the domain is a subset of R ". The problems encountered while extending the definition are also ...

2017
H.E.T. Holgersson Peter S. Karlsson H. E. T. Holgersson

Journal: :IEEE Trans. Information Theory 2007
Tor Helleseth Alexander Kholosha Geir Jarle Ness

Considered is the distribution of the crosscorrelation between m-sequences of length 2−1, where m = 2k, and m-sequences of shorter length 2 − 1. New pairs of m-sequences with three-valued crosscorrelation are found and the complete correlation distribution is determined. Finally, we conjecture that there are no more cases with a three-valued crosscorrelation apart from the ones proven here.

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2009
Fengzhong Wang Shwu-Jane Shieh Shlomo Havlin H Eugene Stanley

We investigate the two components of the total daily return (close-to-close), the overnight return (close-to-open), and the daytime return (open-to-close), as well as the corresponding volatilities of the 2215 New York Stock Exchange stocks for the 20 year period from 1988 to 2007. The tail distribution of the volatility, the long-term memory in the sequence, and the cross correlation between d...

Journal: :Human movement science 2017
Zainy M H Almurad Clément Roume Didier Delignières

Interpersonal coordination represents a very common phenomenon in daily-life activities. Three theoretical frameworks have been proposed to account for synchronization processes in such situations: the information processing approach, the coordination dynamics perspective, and the complexity matching effect. On the basis of a theoretical analysis of these frameworks, we propose three statistica...

Journal: :The Journal of the Acoustical Society of America 2005
Ning Xiang John N Daigle Mendel Kleiner

A wide variety of acoustic systems has multiple sources and receivers. This paper proposes a technique for making acoustic measurements simultaneously for multiple sources. The proposed technique features a collection of excitation signals of the maximum-length sequence (MLS) and MLS-related classes. Each signal in the set has a pulse-like autocorrelation function, and the cross-correlation fun...

Journal: :Psychological methods 2002
Steven M Boker Minquan Xu Jennifer L Rotondo Kadijah King

Cross-correlation and most other longitudinal analyses assume that the association between 2 variables is stationary. Thus, a sample of occasions of measurement is expected to be representative of the association between variables regardless of the time of onset or number of occasions in the sample. The authors propose a method to analyze the association between 2 variables when the assumption ...

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