Results 31 to 40 of about 43,068 (161)

Time domain analysis of flyback EMI based on distributed parameters theory

Frontiers in Electronics
The electromagnetic interference (EMI) is a key issue for most of electric or electronic devices, the researches of suitable analysis methods and solutions absorb much attentions. The research about electromagnetic interference (EMI) is normally based on
Baiyi Liu, Baiyi Liu, Rui Li, Jianqiang Ji, Yiming Wang, Po Xu   +5 more
doaj   +1 more source

Piecewise Adaptive-Norm Trend Filtering Method for ICESat/GLAS Waveform Data Denoising

IEEE Access, 2020
The Geoscience Laser Altimeter System (GLAS) aboard Ice, Cloud and land Elevation Satellite (ICESat) was able to capture the full waveform of backscattered laser pulse.
Lianying Li, Mengrong Cai, Xiaobin Guan, Dong Chu   +3 more
doaj   +1 more source

Photonic generation of Barker encoded dual-nonlinear frequency modulated RADAR waveforms

Results in Optics, 2023
Photonics enables the development of versatile waveform generators with carrier frequency tunability and broad bandwidths, allowing for high-range resolution for modern radar systems.
Rajveer Dhawan, Amol Choudhary
doaj   +1 more source

WPD-Based Noise Reduction for Microseismic Data Through Adaptive Coefficient Shrinkage and Multi-Basis Fusion

IEEE Access
In microseismic monitoring, sensors distributed at different spatial positions face varying noise conditions, leading to data quality deterioration. Due to the precise time-frequency analysis capabilities, flexibility, and low computational complexity ...
Yaqi Zhang, Zhiqiang Lan, Zheng Shi, Yuhang Xue, Jie Wang, Kun Zhu, Jian He, Xiujian Chou   +7 more
doaj   +1 more source

Radar Constant-Modulus Waveform Optimization for High-Resolution Range Profiling of Stationary Targets

Sensors, 2017
The high-resolution range (HRR) profile is an important target signature in many applications (e.g., automatic target recognition), and the radar HRR profiling performance is highly dependent on radar transmitted waveforms. In this paper, we consider the
Wenzhen Yue, Lin Li, Yu Xin, Tao Han
doaj   +1 more source

Temporal waveform denoising using deep learning for injection laser systems of inertial confinement fusion high-power laser facilities

High Power Laser Science and Engineering
For the pulse shaping system of the SG-II-up facility, we propose a U-shaped convolutional neural network that integrates multi-scale feature extraction capabilities, an attention mechanism and long short-term memory units, which effectively facilitates ...
Wei Chen, Xinghua Lu, Wei Fan, Xiaochao Wang   +3 more
doaj   +1 more source

MIMO Radar Imaging Method with Non-Orthogonal Waveforms Based on Deep Learning

Algorithms, 2022
Transmitting orthogonal waveforms are the basis for giving full play to the advantages of MIMO radar imaging technology, but the commonly used waveforms with the same frequency cannot meet the orthogonality requirement, resulting in serious coupling ...
Hongbing Li, Qunfei Zhang
doaj   +1 more source

Noise Detection in Electrocardiogram Signals for Intensive Care Unit Patients

IEEE Access, 2019
Long-term electrocardiogram (ECG) signals recorded in an intensive care unit (ICU) are often corrupted by severe motion and noise artifacts (MNA), which may lead to many false alarms, including inaccurate detection of atrial fibrillation (AF).
Syed Khairul Bashar, Eric Ding, Allan J. Walkey, David D. McManus, Ki H. Chon   +4 more
doaj   +1 more source

Ambient Noise Full Waveform Inversion With Neural Operators

Journal of Geophysical Research: Solid Earth
Abstract Numerical simulations of seismic wave propagation are crucial for investigating velocity structures and improving seismic hazard assessment. However, standard methods such as finite difference or finite element are computationally expensive.
Caifeng Zou, Zachary E. Ross, Robert W. Clayton, Fan‐Chi Lin, Kamyar Azizzadenesheli   +4 more
openaire   +2 more sources