نتایج جستجو برای: colored noise

تعداد نتایج: 210869  

Journal: :Physica A: Statistical Mechanics and its Applications 2013

Journal: :Physical review. E 2017
Yogita Sharma Partha Sharathi Dutta

Gene expression is a noisy process that leads to regime shifts between alternative steady states among individual living cells, inducing phenotypic variability. The effects of white noise on the regime shift in bistable systems have been well characterized, however little is known about such effects of colored noise (noise with nonzero correlation time). Here, we show that noise correlation tim...

2017
Sheng-Lun Yi Xue-bo Jin Ting-Li Su Zhen-Yun Tang Fa-Fa Wang Na Xiang Jian-Lei Kong

Online denoising is motivated by real-time applications in the industrial process, where the data must be utilizable soon after it is collected. Since the noise in practical process is usually colored, it is quite a challenge for denoising techniques. In this paper, a novel online denoising method was proposed to achieve the processing of the practical measurement data with colored noise, and t...

Journal: :J. Signal and Information Processing 2011
Venkata Rama Rao M. B. Rama Murthy K. Srinivasa Rao

The speech signal in general is corrupted by noise and the noise signal does not affect the speech signal uniformly over the entire spectrum. An improved Wiener filtering method is proposed in this paper for reducing background noise from speech signal in colored noise environments. In view of nonlinear variation of human ear sensibility in frequency spectrum, nonlinear multi-band Bark scale fr...

2004
Ioannis V. Sideris Courtlandt L. Bohn

104202-1 We investigate how collective modes and colored noise conspire to produce a beam halo with much larger amplitude than could be generated by either phenomenon separately. The collective modes are lowest-order radial eigenmodes calculated self-consistently for a configuration corresponding to a direct-current, cylindrically symmetric, warm-fluid Kapchinskij-Vladimirskij equilibrium. The ...

2011
Mingqi Hui Juan Li Xiaotong Wen Li Yao Zhiying Long

BACKGROUND Independent Component Analysis (ICA) has been widely applied to the analysis of fMRI data. Accurate estimation of the number of independent components of fMRI data is critical to reduce over/under fitting. Although various methods based on Information Theoretic Criteria (ITC) have been used to estimate the intrinsic dimension of fMRI data, the relative performance of different ITC in...

2012
Amir Hossain Ghazizadeh Mehdi Bakhshaee Ebrahim Mahdavi Rahman Movahhed

INTRODUCTION It has been shown that low levels of pigmentation increase susceptibility to noise-induced hearing loss in humans. For this reason, white populations develop more pronounced noise- induced hearing loss in comparison to black populations. Similarly, blue-eyed individuals exhibit greater temporary threshold shift than brown-eyed subjects; still, no strong correlation has been verifie...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2008
Tilo Schwalger Benjamin Lindner

Exact expressions for first- and higher-order residence time statistics, count statistics, and spectral properties of a bistable system driven by dichotomous colored noise are put forward and discussed. The employed method is based on a discrete kinetic scheme and is valid for a wide range of parameter values of the colored noise. This permits a detailed analysis of the effects of noise correla...

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