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Showing 1-20 of 5,198 results
  1. Suppression of seismic random noise by deep learning combined with stationary wavelet packet transform

    Many traditional denoising methods, such as Gaussian filtering, tend to blur and lose details or edge information while reducing noise. The...

    Hua Fan, Dong-Bo Wang, ... Tao Li in Applied Geophysics
    Article 05 June 2024
  2. Surface wave suppression through deformable convolutional wavelet transform network with residual dense blocks

    Surface wave suppression plays a vital role in enhancing the quality of reflection seismic exploration. Convolutional neural networks (CNNs) can...

    Lei Gao, Haolong Hong, ... Fan Min in Acta Geophysica
    Article 06 April 2024
  3. WTCRNet: a wavelet transform and contrastive regularization network for sonar denoising by self-supervision

    In the field of underwater acoustics, forward-looking sonar represents a pivotal tool for acquiring subaqueous imagery. However, this technique is...

    Chengling Si, Shu Zhang, ... Junyu Dong in Intelligent Marine Technology and Systems
    Article Open access 24 June 2024
  4. Semi-automated Rock Layer Recognition from Borehole Log Data Using Combined Wavelet and Fourier Transform: A Case Study in the KG basin, India

    The accurate identification of rock layer interfaces from wireline logs is one of the crucial issue of geological interpretation as we face...

    Bappa Mukherjee, Kalachand Sain in Journal of the Geological Society of India
    Article 20 December 2023
  5. Analysis of Cosmic Ray Fluxes at Different Stations during Geomagnetic Storms using Wavelet Based Approaches: Continuous Wavelet Transform and Multi-Resolution Analysis

    Abstract

    This study investigated the impact of different types of geomagnetic storms on cosmic ray fluxes at different stations using various...

    Chali Idosa Uga, Binod Adhikari, Dessalegn Teferi in Geomagnetism and Aeronomy
    Article 25 December 2023
  6. Ultra-short-term wind speed prediction based on empirical wavelet transform and combined model

    Due to the variability, proneness to outside influences, and constantly fluctuating nature of ultra-short-term wind speed sequences, wind speed...

    Maosen Wang, Zhongda Tian in Earth Science Informatics
    Article 15 December 2023
  7. The Continuous Wavelet Transform

    The wavelet transform was designed to estimate the power spectra of non-stationary signals, that is, those whose frequency content varies over time...
    Chapter 2022
  8. Recognition Method of Coal–Rock Reflection Spectrum Using Wavelet Scattering Transform and Bidirectional Long–Short-Term Memory

    Classifying and recognizing the reflection spectrum of coal–rock is an innovative method for coal–rock identification in coal mining process. Herein,...

    Z. W. Ding, C. F. Zhang, ... Y. X. Liu in Rock Mechanics and Rock Engineering
    Article 24 October 2023
  9. Fast Wavelet Transform

    Indu Solomon, Uttam Kumar in Encyclopedia of Mathematical Geosciences
    Reference work entry 2023
  10. Deformation evaluation and displacement forecasting of baishuihe landslide after stabilization based on continuous wavelet transform and deep learning

    Baishuihe Landslide is a large active landslide that threatens ship** transportation in the Three Gorges Reservoir (China). A manual monitoring...

    Yuting Liu, Giordano Teza, ... Simonetta Cola in Natural Hazards
    Article 21 April 2024
  11. Application of a Continuous Wavelet Transform to Study Planetary Waves

    Abstract

    In this paper, we show a method for using the continuous Morlet wavelet transform in studying the variability of atmospheric migrating and...

    K. A. Didenko, A. I. Pogoreltsev in Izvestiya, Atmospheric and Oceanic Physics
    Article 28 June 2022
  12. Modeling of meteorological, agricultural, and hydrological droughts in semi-arid environments with various machine learning and discrete wavelet transform

    Recent meteorological, hydrological, and agricultural droughts in the Mediterranean regions have raised concerns about the impact of climate change....

    Mohammed Achite, Okan Mert Katipoglu, ... Hüseyin Yıldırım Dalkılıç in Theoretical and Applied Climatology
    Article 18 August 2023
  13. A maximal overlap discrete wavelet packet transform coupled with an LSTM deep learning model for improving multilevel groundwater level forecasts

    Develo** precise groundwater level (GWL) forecast models is essential for the optimal usage of limited groundwater resources and sustainable...

    Dilip Kumar Roy, Ahmed A. Hashem, ... John Nowlin in Discover Water
    Article Open access 08 April 2024
  14. Gravity data fusion using wavelet transform and window weighting: a case study in the Ross Sea of Antarctica

    Satellite gravity anomaly data are characterized with wide coverage and high overall normalized quality, and these data can be used in large-scale...

    Long Ma, Haibin Song, ... Quanshu Yan in Acta Geophysica
    Article 22 May 2024
  15. Continuous Wavelet Transform and Dynamic Time War**-Based Fine Division and Correlation of Glutenite Sedimentary Cycles

    Glutenite reservoirs are characterized by strong heterogeneity, large thickness, complex rock fabric, and low maturity in terms of structure and...

    Zhichao Yu, Zhizhang Wang, Jie Wang in Mathematical Geosciences
    Article 16 December 2022
  16. Analysis and synthesis of East Himalayan earthquakes using a hybrid wavelet synchrosqueezed transform

    The work presented in paper is focussed on the development of an accurate time-frequency representation of accelerograms, representing the seismic...

    Adarsh Krishnan, Ramkrishnan Ramabhadran, ... Kavya Muraleedharan in Arabian Journal of Geosciences
    Article 06 November 2023
  17. A Method to Extract Image Features and Lineaments Based on a Multi-hillshade Continuous Wavelet Transform

    This paper presents a new method for extracting the image features and lineaments related to local extrema of an image or a digital elevation model...

    Man Hyok Song, ** Gyong Ho, ... Song Lyu in Mathematical Geosciences
    Article 03 June 2024
  18. Improved Treatment of Model Prediction Uncertainty: Estimating Rainfall using Discrete Wavelet Transform and Principal Component Analysis

    It is necessary to select appropriate rainfall series as input to the hydrologic model to access more accurate hydrologic predictions and estimate...

    Mahrouz Nourali in Water Resources Management
    Article 05 July 2023
  19. Statistical and Wavelet Transform-Based Study of the Latitudinal Ionospheric Response to an Annular Solar Eclipse on June 21, 2020

    Abstract

    The ionosphere is a very complex and variable part of the atmosphere and it is controlled by solar activity. A solar eclipse is one of the...

    Devbrat Pundhir, Birbal Singh, Rajpal Singh in Izvestiya, Atmospheric and Oceanic Physics
    Article 01 December 2022
  20. Seasonal analysis of long-term (1970–2020) rainfall variability using clustering and wavelet transform approach in the Mahi River Basin, India

    Understanding the trend of seasonal rainfall in the context of climate change is crucial for the maintenance of regional water resources management....

    Aditya Sharma, Devesh Sharma, ... Swatantra Kumar Dubey in Acta Geophysica
    Article 04 May 2023
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