Results 31 to 40 of about 36,871 (305)

Modulation classification based on denoising autoencoder and convolutional neural network with GNU radio

open access: yesThe Journal of Engineering, 2019
In this article, a machine learning method to classify signal with Gaussian noise based on denoising auto encoder (DAE) and convolutional neural network (CNN) is proposed. We combine denoising autoencoder's denoising ability with CNN's feature extraction
Jun Wang   +3 more
doaj   +1 more source

Hybrid IIR/FIR Wavelet Filter Banks for ECG Signal Denoising [PDF]

open access: yes, 2018
ElectroCardioGram (ECG) signals are usually corrupted with various types of artifacts which degrade the signal quality and might lead to misdiagnosis.
Eminaga, Y., Kale, I., Coskun, A.
core   +1 more source

Rehaussement du signal de parole voisé par filtrage adaptatif des modes intrinsèques empiriques [PDF]

open access: yes, 2010
In this paper a new method for voiced speech enhancement combining the Empirical Mode Decomposition (EMD) and the Adaptive Center Weighted Average (ACWA) filter is introduced.
TURKI, Monia   +2 more
core   +1 more source

A time-frequency denoising method for single-channel event-related EEG

open access: yesFrontiers in Neuroscience, 2022
IntroductionElectroencephalogram (EEG) acquisition is easily affected by various noises, including those from electrocardiogram (ECG), electrooculogram (EOG), and electromyogram (EMG).
Wenqiang Yan, Yongcheng Wu
doaj   +1 more source

A multiresolution framework for local similarity based image denoising [PDF]

open access: yes, 2012
In this paper, we present a generic framework for denoising of images corrupted with additive white Gaussian noise based on the idea of regional similarity.
Rajpoot, Nasir M. (Nasir Mahmood)   +1 more
core   +1 more source

Wavelet Threshold Ultrasound Echo Signal Denoising Algorithm Based on CEEMDAN

open access: yes, 2023
In this study, an algorithm for denoising ultrasound echo signals in industrial settings is proposed to address the problem of high noise and low signal-to-noise ratio.
Huyue Xu   +3 more
core   +1 more source

A Hierarchical Bayesian Model for Frame Representation [PDF]

open access: yes, 2010
In many signal processing problems, it is fruitful to represent the signal under study in a frame. If a probabilistic approach is adopted, it becomes then necessary to estimate the hyperparameters characterizing the probability distribution of the frame
Amel Benazza-Benyahia   +9 more
core   +1 more source

Wavelet shrinkage using adaptive structured sparsity constraints [PDF]

open access: yes, 2015
Structured sparsity approaches have recently received much attention in the statistics, machine learning, and signal processing communities. A common strategy is to exploit or assume prior information about structural dependencies inherent in the data ...
Tomassi, Diego Rodolfo   +7 more
core   +1 more source

Research on Ship-Radiated Noise Denoising Using Secondary Variational Mode Decomposition and Correlation Coefficient

open access: yesSensors, 2017
As the sound signal of ships obtained by sensors contains other many significant characteristics of ships and called ship-radiated noise (SN), research into a denoising algorithm and its application has obtained great significance. Using the advantage of
Yuxing Li, Yaan Li, Xiao Chen, Jing Yu
doaj   +1 more source

A novel denoising method for non‐linear and non‐stationary signals

open access: yesIET Signal Processing, 2023
Signal denoising is a crucial step in signal analysis. Various procedures have been attempted by researchers to remove the noise while preserving the effective components of the signal. One of the most successful denoising methods currently in use is the
Honglin Wu   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy