Results 1 to 10 of about 381,042 (274)

Improvement in Random Noise for Pixel-Parallel Single-Slope ADC with Consideration of Flicker Noise Effect [PDF]

Sensors
We propose and demonstrate a low-random-noise (RN) design for pixel-parallel single-slope ADCs (SS-ADCs), achieving 2.2 e-rms in a 3.24 µm pixel. In this paper, we discuss AC-based RN estimation with respect to the comparator bias current and a bandwidth-
Masayuki Uno, Kwuang-Han Chang, Tsung-Hsun Tsai, Junichi Nakamura, Rimon Ikeno, Kazuya Mori, Ken Miyauchi, Toshiyuki Isozaki, Yi-Hsuan Lin, Sheng-Yeh Lai, Chih-Hao Lin, Wei-Fan Chou, Guang Yang, Song Chen, Chiao Liu   +14 more
doaj   +2 more sources

High-Update-Rate (25 kHz) Laser Ranging with Random Noise Modulation for Fast and Precise Absolute Distance Measurement [PDF]

Sensors
This paper proposes a technique for precise distance measurement under laser random noise using autocorrelation demodulation. We conducted measurements within a 2 m range using a commercial digitizer with a sampling rate of 40 GS/s.
Yongchao Chen, Tianci Liu, Shenggang Liu, Longhuang Tang, Heli Ma, Tianjiong Tao, Xing Jia, Jian Wu, Chengjun Li, Xiang Wang, Zongchen Wang, Weilu Chen, Xirui Zhang, Entao Li, Jia Shi, Jidong Weng   +15 more
doaj   +2 more sources

Seismic random noise suppression using improved CycleGAN

Frontiers in Earth Science, 2023
Random noise adversely affects the signal-to-noise ratio of complex seismic signals in complex surface conditions and media. The primary challenges related to processing seismic data have always been reducing the random noise and increasing the signal-to-
Shimin Sun, Guihua Li, Renwei Ding, Lihong Zhao, Lihong Zhao, Yujie Zhang, Shuo Zhao, Jinwei Zhang, Junlin Ye   +8 more
doaj   +1 more source

Instability Induced by Random Background Noise in a Delay Model of Landslide Dynamics

Applied Sciences, 2023
In the present paper, we propose a new model for landslide dynamics, in the form of the spring-block mechanical model, with included delayed interaction and the effect of the background seismic noise.
Srđan Kostić, Nebojša Vasović, Kristina Todorović, Dragan Prekrat   +3 more
doaj   +1 more source

An Attention-Based Residual Neural Network for Efficient Noise Suppression in Signal Processing

Applied Sciences, 2023
The incorporation of effective denoising techniques is a crucial requirement for seismic data processing during the acquisition phase due to the inherent susceptibility of the seismic data acquisition process to various forms of interference, such as ...
Tianwei Lan, Liguo Han, Zhaofa Zeng, Jingwen Zeng   +3 more
doaj   +1 more source

Design and Analysis of a Magnetic Field Communication System Using a Giant Magneto-Impedance Sensor

IEEE Access, 2022
Given the interest of researchers for wireless communications in electromagnetic (EM) shadow areas, a magnetic field communication has emerged to overcome RF challenges based on magnetic permeability characteristics. However, magnetic field communication
Seunghun Ryu, Kibeom Kim, Jang-Yeol Kim, In-Kui Cho, Haerim Kim, Jangyong Ahn, Junsung Choi, Seungyoung Ahn   +7 more
doaj   +1 more source

Structure-Preserving Random Noise Attenuation Method for Seismic Data Based on a Flexible Attention CNN

Remote Sensing, 2022
The noise attenuation of seismic data is an indispensable part of seismic data processing, directly impacting the following inversion and imaging. This paper focuses on two bottlenecks in the AI-based denoising method of seismic data: the destruction of ...
Wenda Li, Tianqi Wu, Hong Liu
doaj   +1 more source

Noise-stabilized random attractor [PDF]

Physical Review E, 2006
A two dimensional flow model is introduced with deterministic behavior consisting of bursts which become successively larger, with longer interburst time intervals between them. The system is symmetric in one variable x and there are bursts on either side of x = 0, separated by the presence of an invariant manifold at x = 0.
Finn, J. M., Tracy, E. R., Cooke, W. E., Richardson, A. S.   +3 more
openaire   +3 more sources

Adiabatic Invariant of Center-of-Mass Motion during Walking as a Dynamical Stability Constraint on Stride Interval Variability and Predictability

Biology, 2022
Human walking exhibits properties of global stability, and local dynamic variability, predictability, and complexity. Global stability is typically assessed by quantifying the whole-body center-of-mass motion while local dynamic variability ...
Fabien Buisseret, Victor Dehouck, Nicolas Boulanger, Guillaume Henry, Florence Piccinin, Olivier White, Frédéric Dierick   +6 more
doaj   +1 more source

Global Dynamics of a Stochastic Viral Infection Model with Latently Infected Cells

Applied Sciences, 2021
In this paper, we study the global dynamics of a stochastic viral infection model with humoral immunity and Holling type II response functions. The existence and uniqueness of non-negative global solutions are derived.
Chinnathambi Rajivganthi, Fathalla A. Rihan   +1 more
doaj   +1 more source