Results 1 to 10 of about 3,128,219 (294)

Signal Separation Operator Based on Wavelet Transform for Non-Stationary Signal Decomposition [PDF]

open access: yesSensors
This paper develops a new frame for non-stationary signal separation, which is a combination of wavelet transform, clustering strategy and local maximum approximation.
Ningning Han, Yongzhen Pei, Zhanjie Song
doaj   +4 more sources

Fractional Fourier Transform-Based Signal Separation for Ultrasonic Guided Wave Inspection of Plates [PDF]

open access: yesSensors
Detecting defects in plates is crucial across various industries due to safety risks. While ultrasonic bulk waves offer point-by-point inspections, they are time-consuming and limited in coverage.
Chengxiang Peng   +4 more
doaj   +2 more sources

Time–Frequency Mask-Aware Bidirectional LSTM: A Deep Learning Approach for Underwater Acoustic Signal Separation [PDF]

open access: yesSensors, 2022
Underwater acoustic signal separation is a key technique for underwater communications. The existing methods are mostly model-based, and cannot accurately characterize the practical underwater acoustic communication environment.
Jie Chen   +4 more
doaj   +2 more sources

An Overlapping-Signal Separation Algorithm Based on a Self-Attention Neural Network for Space-Based ADS-B [PDF]

open access: yesSensors
Space-based automatic dependent surveillance–broadcast (ADS-B) systems offer the potential for comprehensive global aircraft surveillance. However, they face substantial challenges due to severe signal collisions resulting from the simultaneous reception
Ziwei Liu   +5 more
doaj   +2 more sources

LS Channel Estimation and Signal Separation for UHF RFID Tag Collision Recovery on the Physical Layer [PDF]

open access: yesSensors, 2016
In a passive ultra-high frequency (UHF) radio-frequency identification (RFID) system, tag collision is generally resolved on a medium access control (MAC) layer. However, some of collided tag signals could be recovered on a physical (PHY) layer and, thus,
Hanjun Duan   +3 more
doaj   +2 more sources

Metabolic Reprogramming and Its Relationship to Survival in Hepatocellular Carcinoma

open access: yesCells, 2022
Hepatocarcinogenesis is frequently accompanied by substantial metabolic reprogramming to maximize the growth and proliferation of cancer cells. In this study, we carried out a comprehensive study of metabolomics and lipidomics profiles combined with gene
Qingqing Wang   +8 more
doaj   +1 more source

DSENet: Directional Signal Extraction Network for Hearing Improvement on Edge Devices

open access: yesIEEE Access, 2023
In this paper, we propose a directional signal extraction network (DSENet). DSENet is a low-latency, real-time neural network that, given a reverberant mixture of signals captured by a microphone array, aims at extracting the reverberant signal whose ...
Anton Kovalyov   +2 more
doaj   +1 more source

Separation of Two-Dimensional Mixed Circular Fringe Patterns Based on Spectral Projection Property in Fractional Fourier Transform Domain

open access: yesApplied Sciences, 2021
In this paper, a method for automatically separating the mixed circular fringe patterns based on the fractional Fourier transform (FrFT) analysis is proposed.
Hsuan-Ting Chang   +5 more
doaj   +1 more source

Adaptive Complex Variational Mode Decomposition for Micro-Motion Signal Processing Applications

open access: yesSensors, 2021
In order to suppress the strong clutter component and separate the effective fretting component from narrow-band radar echo, a method based on complex variational mode decomposition (CVMD) is proposed in this paper.
Saiqiang Xia   +5 more
doaj   +1 more source

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