Showing 41 - 60 results of 610 for search '"wavelet"', query time: 0.06s Refine Results
  1. 41

    Investigation of combustion-induced vibration sources in a diesel engine in the time-frequency domain using the wavelet analysis method and wavelet cross-correlation analysis method by Natsuki Takahashi, Shun Nakagawa, Masato Mikami

    Published 2025-03-01
    “…This study investigated the characteristics of in-cylinder pressure and vibration acceleration for a single-cylinder diesel engine for different engine speeds using three analysis methods: FFT analysis, wavelet analysis, and wavelet cross-correlation analysis. …”
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    Article
  2. 42

    Machine Learning ECG Classification Using Wavelet Scattering of Feature Extraction by Heyam A. Marzog, Haider. J. Abd

    Published 2022-01-01
    “…Through wavelet cascades with a neural network, the wavelet scattering transform can yield a translation invariant and deflection depictions of ECG signals. …”
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    Article
  3. 43
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    Wavelet-Based Image Registration and Segmentation Framework for the Quantitative Evaluation of Hydrocephalus by Fan Luo, Jeanette W. Evans, Norma C. Linney, Matthias H. Schmidt, Peter H. Gregson

    Published 2010-01-01
    “…Key elements of the developed framework are: adaptive image registration based on mutual information and wavelet multiresolution analysis; adaptive segmentation with novel feature extraction based on the Dual-Tree Complex Wavelet Transform; volume calculation. …”
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    Article
  5. 45

    Improvement of Accuracy in Damage Localization Using Frequency Slice Wavelet Transform by Xinglong Liu, Zhongwei Jiang, Zhonghong Yan

    Published 2012-01-01
    “…This paper presents damage localization in beam structure using impact-induced Lamb wave and Frequency Slice Wavelet Transform (FSWT). FSWT is a new time-frequency analysis method and has the adaptive resolution feature. …”
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    Article
  6. 46

    A Radio-interferometric Imaging Method Based on the Wavelet Tight Frame by Xiaocheng Yang, Xiang You, Lin Wu, Jingye Yan, Feng Liu, Mingfeng Jiang, Junbao Zheng

    Published 2025-01-01
    “…In this paper, we present a novel radio-interferometric imaging method based on the wavelet tight frame aimed at efficiently obtaining an accurate solution. …”
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    Article
  7. 47

    “Pharmacological” analysis of atrial fibrillation maintenance mechanism: reentry, wavelets, or focal? by Alexander Burashnikov

    Published 2025-01-01
    “…Improvement in AF-org caused by anti-AF agents before AF cardioversion is coherent with simultaneous multiple random reentries and wavelets. However, simultaneous multiple reentries are unlikely to occur regularly (most of the contemporary AF mapping studies report either a single reentry at a time or no reentry at all), and the ability of random wavelets to maintain AF is speculative. …”
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    Article
  8. 48
  9. 49

    Adaptive Wavelet Estimation of a Biased Density for Strongly Mixing Sequences by Christophe Chesneau

    Published 2011-01-01
    “…We construct a new adaptive wavelet estimator based on a hard thresholding rule. …”
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    Article
  10. 50

    Seismic Damage Analysis of Concrete Gravity Dam Based on Wavelet Transform by Dunben Sun, Qingwen Ren

    Published 2016-01-01
    “…By using time-frequency localization performance of wavelet transform, the distribution characteristics of wavelet energy for gravity dam dynamic response signal are revealed under the action of different amplitude earthquakes. …”
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    Article
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  13. 53

    Wavelet Transform-Based Damage Identification in Bladed Disks and Rotating Blades by P. Rajendran, N. Jamia, S. El-Borgi, M. I. Friswell

    Published 2018-01-01
    “…The Lipschitz exponent is derived from the wavelet packet coefficients and used to estimate the severity of the damage. …”
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    Article
  14. 54

    Wavelet-Based Frequency Response Function: Comparative Study of Input Excitation by K. Dziedziech, W. J. Staszewski, T. Uhl

    Published 2014-01-01
    “…The time-variant frequency response function—based on the continuous wavelet transform—is used in this paper for the analysis of time-variant systems. …”
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    Article
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    A Based Bayesian Wavelet Thresholding Method to Enhance Nuclear Imaging by Nawrès Khlifa, Najla Gribaa, Imen Mbazaa, Kamel Hamruoni

    Published 2009-01-01
    “…Since these images are modeled as the realization of a Poisson process, we propose a new framework that performs variance stabilizing of the Poisson process before applying an adapted Bayesian wavelet shrinkage. The proposed method has been applied on real images, and it has proved its performance.…”
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    Article
  17. 57

    Damage Detection on Sudden Stiffness Reduction Based on Discrete Wavelet Transform by Bo Chen, Zhi-wei Chen, Gan-jun Wang, Wei-ping Xie

    Published 2014-01-01
    “…The signal discontinuity of the structural acceleration responses of an example building is extracted based on the discrete wavelet transform. It is proved that the variation of the first level detail coefficients of the wavelet transform at damage instant is linearly proportional to the magnitude of the stiffness reduction. …”
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    Article
  18. 58

    Interval Shannon Wavelet Collocation Method for Fractional Fokker-Planck Equation by Shu-Li Mei, De-Hai Zhu

    Published 2013-01-01
    “…In this paper, we present an interval Shannon wavelet numerical method for the FFPE. In this method, a new concept named “dynamic interval wavelet” is proposed to solve the problem that the numerical solution of the fractional PDE is usually sensitive to boundary conditions. …”
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  19. 59

    Terrorist Group Behavior Prediction by Wavelet Transform-Based Pattern Recognition by Ze Li, Duoyong Sun, Bo Li, Zhanfeng Li, Aobo Li

    Published 2018-01-01
    “…In this paper, we propose a comprehensive framework that combines social network analysis, wavelet transform, and the pattern recognition approach to investigate the dynamics and eventually predict the attack behavior of terrorist group. …”
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    Article
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