Results 11 to 20 of about 20,110 (263)

Recognition of Noisy Radar Emitter Signals Using a One-Dimensional Deep Residual Shrinkage Network

open access: yesSensors, 2021
Signal features can be obscured in noisy environments, resulting in low accuracy of radar emitter signal recognition based on traditional methods. To improve the ability of learning features from noisy signals, a new radar emitter signal recognition ...
Shengli Zhang   +3 more
doaj   +1 more source

A Modified Soft-thresholding Approach in the Transcriptomic Analysis of Adaptation of E.coli to Alternating Substrate Conditions

open access: yesHittite Journal of Science and Engineering, 2019
The expression of genes that are functionally related is considered to change together in response to deterioration of internal or external order. The system-level analysis of these changes has become widespread in recent years.
Muhammed Erkan Karabekmez
doaj   +1 more source

Estimating Dynamic Motion Parameters With an Improved Wavelet Thresholding and Inter-Scale Correlation

open access: yesIEEE Access, 2018
With the challenging noisy measurements, the maneuvering safety and comfort level of hovercraft navigation can be significantly increased by accurate motion parameter estimation. Because traditional hard/soft thresholding schemes have discontinuities and
Yuanhui Wang   +3 more
doaj   +1 more source

Microseismic Signal Denoising via Empirical Mode Decomposition, Compressed Sensing, and Soft-thresholding

open access: yesApplied Sciences, 2020
Microseismic signal denoising is of great significance for P wave, S wave first arrival picking, source localization, and focal mechanism inversion. Therefore, an Empirical Mode Decomposition (EMD), Compressed Sensing (CS), and Soft-thresholding (ST ...
Xiang Li   +4 more
doaj   +1 more source

Perbandingan Mother Wavelet dalam Proses Denoising pada Suara

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2014
Abstrak Transformasi Wavelet telah digunakan dalam proses denoising pada suara dengan tujuan untuk meningkatkan kualitas dari rekaman suara yang tercampur dengan derau.
Rahmat Ramadhan, Agfianto Eko Putra
doaj   +1 more source

Rolling Bearing Fault Diagnosis Using Improved Deep Residual Shrinkage Networks

open access: yesShock and Vibration, 2021
To improve feature learning ability and accurately diagnose the faults of rolling bearings under a strong background noise environment, we present a new shrinkage function named leaky thresholding to replace the soft thresholding in the deep residual ...
Zhijin Zhang, He Li, Lei Chen, Ping Han
doaj   +1 more source

Iterative Deblending of off-the-Grid Simultaneous Source Data

open access: yesIEEE Access, 2021
Simultaneous source acquisition can enhance the seismic data quality or improve the field acquisition efficiency. However, one of the disadvantages is that the simultaneous source data are often obtained on a non-uniform sampled grid in realistic ...
Hua Zhang   +3 more
doaj   +1 more source

Image noise reduction based on applying adaptive thresholding onto PDEs methods

open access: yesThe Journal of Engineering, 2017
In this study the authors present a novel image denoising method based on applying adaptive thresholding on partial differential (PDEs) methods. In the proposed method the authors utilise the adaptive thresholding to blend the total variation filter with
Ali Abdullah Yahya   +4 more
doaj   +1 more source

Sparse Reconstruction Using Hyperbolic Tangent as Smooth l1-Norm Approximation

open access: yesComputation, 2023
In the Compressed Sensing (CS) framework, the underdetermined system of linear equation (USLE) can have infinitely many possible solutions. However, we intend to find the sparsest possible solution, which is l0-norm minimization.
Hassaan Haider   +3 more
doaj   +1 more source

PFYOLOv4: An Improved Small Object Pedestrian Detection Algorithm

open access: yesIEEE Access, 2023
With the development of deep convolutional neural networks, the effect of pedestrian detection has been rapidly improved. However, there are still many problems in small target pedestrian detection, for example noise (such as light) interference, target ...
Kaihui Li   +3 more
doaj   +1 more source

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