Results 21 to 30 of about 462,479 (185)

A fast reverberation suppression method based on graph Laplacian regularization [PDF]

JASA Express Letters
Traditional low-rank and sparse decomposition methods impose a global low-rank constraint for estimating the reverberation subspace, but they face performance degradation with limited samples and require computationally expensive singular value ...
Wenbo Gou, Hong Liang, Pulin Yang
doaj   +1 more source

Partial Discharge Signal Extraction Method Based on EDSSV and Low Rank RBF Neural Network

IEEE Access, 2021
The detection process of partial discharge (PD) ultra-high frequency (UHF) signal is easily affected by white noise and periodic narrowband noise, which hinder the fault diagnosis of high-voltage electrical appliances.
Xiaoli Yang, Hongguang Huang, Qin Shu, Dakun Zhang, Bojian Chen   +4 more
doaj   +1 more source

Liu-Yitao/mtm-svd-python: MTM-SVD with Monte Carlo test

, 2021
This script is a modified version of the Python function developed by Mathilde Jutras at McGill University, Canada[1]. You can find the original Python code here: https://github.com/mathildejutras/mtm-svd-python The Monte Carlo test is quite slow, make
Liu-Yitao, Mathilde Jutras
core   +1 more source

Clustering before training large datasets - Case study: K-SVD [PDF]

, 2012
Training and using overcomplete dictionaries has been the subject of many developments in the area of signal processing and sparse representations. The main idea is to train a dictionary that is able to achieve good sparse representations of the items ...
Rusu, Cristian
core   +1 more source

DRFM Repeater Jamming Suppression Method Based on Joint Range-Angle Sparse Recovery and Beamforming for Distributed Array Radar

Remote Sensing, 2023
Distributed array radar achieves high angular resolution and measurement accuracy, which could provide a solution to suppress digital radio frequency memory (DRFM) repeater jamming.
Bowen Han, Xiaodong Qu, Xiaopeng Yang, Zhengyan Zhang, Wolin Li   +4 more
doaj   +1 more source

H-scan Subtraction Doppler Imaging: A Novel Ultrasound Small Blood Vessel Flow Characterization with Scattering and Reflection Identification

Applied Sciences, 2020
Ultrafast compound Doppler imaging (UCDI), which can be used to acquire Doppler information at very high spatial and temporal sampling rates, provides a great improvement to the characterization of the vasculature.
Yang Jiao, Derong Zhang, Yiwen Xu, Yang Chen, Zhe Wu, Yaoyao Cui   +5 more
doaj   +1 more source

A Novel Interference Suppression Method for Interrupted Sampling Repeater Jamming Based on Singular Spectrum Entropy Function

Sensors, 2019
As a new type of jamming, the interrupted sampling repeater jamming (ISRJ) derived from the digital radio frequency memory (DRFM) technology, can generate coherent multiple false targets after pulse compression.
Muyao Yu, Shengbo Dong, Xiangyu Duan, Shangchao Liu   +3 more
doaj   +1 more source

Chaotic signal denoising based on energy selection TQWT and adaptive SVD

Scientific Reports, 2023
Aiming at the problem of denoising chaotic signals with low signal-to-noise ratio and unknown dynamic system parameters, a new chaotic signal denoising algorithm is proposed, which combines adjustable Q-factor wavelet transform (TQWT) and adaptive ...
Xinlu Yang, Wenbo Wang
doaj   +1 more source

Minimization of Mutual Coupling Interferences Between Nearby Antenna Arrays to Retain Their Beam Steering Functionality

IEEE Access, 2023
This paper presents an effective excitation synthesis algorithm of phased arrays of antennas to optimize the radiation patterns under minimum mutual coupling/induction interferences between two nearby arrays.
Hsi-Tseng Chou, Chen-Yi Chang, Danai Torrungrueng   +2 more
doaj   +1 more source

Complex-domain SVD- and sparsity-based denoising for optical diffraction tomography

, 2022
In this paper, we adopt a complex-domain cube filter (CCF) developed for hyperspectral 3D complex domain images for noise suppression of 3D complex-valued data in optical diffraction tomography.
Ziemczonok, Michal, Kujawinska, Malgorazata, Shevkunov, Igor, Egiazarian, Karen   +3 more
core   +1 more source