Search Results - improved low-frequency attenuation algorithm

Research on Seismic Acceleration Waveform Reproduction Based on Time-Frequency Hybrid Integration Algorithm by Guo, Ying-Qing, Zhang, Han-Qi, Wang, Yi-Na, Dai, Jun

“… The algorithm mainly includes two steps. The first step is to use the improved low-frequency attenuation algorithm to integrate the seismic acceleration for the first time in the frequency domain to obtain the corresponding velocity signal…”
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Displacement reconstruction from measured accelerations and accuracy control of integration based on a low-frequency attenuation algorithm by Zhu, Hao, Zhou, Yingjie, Hu, Yumei

“…This study is aimed to reconstruct displacements from measured accelerations based on a low-frequency attenuation (LFA) algorithm…”
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Differential acoustic resonance spectroscopy: improved theory and application in the low frequency range by Zhao, Jianguo, Wang, Shangxu, Tong, Xiaolong, Yin, Hanjun, Yuan, Dongju, Ma, Xiaoyi, Deng, Jixin, Xiong, Bin

“… Resonant frequency shifts, measured at different resonance modes and between empty and sample-loaded cavities, were used to infer the acoustic properties of the loaded samples in the low frequency range (0.5–2 kHz…”
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Low-frequency noise suppressing of desert seismic data by improved nonlinear autoregressive with external input neural network by Li, Guanghui, Lu, Xuan, Liang, Meiyan, Feng, Zhiqiang

“…Low-frequency signal and noise are the main components of seismic data in Northwest China desert area…”
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Topological Design of Two-Dimensional Phononic Crystals Based on Genetic Algorithm by Wen, Xiaodong, Kang, Lei, Sun, Xiaowei, Song, Ting, Qi, Liangwen, Cao, Yue

“… In this paper, an improved adaptive genetic algorithm is proposed for the reverse customization of two-dimensional phononic crystals designed to maximize the relative bandwidth at low frequencies…”
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A Ground-Roll Separation Method Based on Neural Networks With Morphological Similarity Loss by Tian, Xingyu, Ao, Yile, Li, Yanda, Lu, Wenkai

“… In this letter, we proposed an improved ground-roll separation algorithm through the combination of deep-learning-based low-frequency generation and dictionary-learning-based low-frequency reconstruction…”
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Sixty‐hertz stimulation improves bradykinesia and amplifies subthalamic low‐frequency oscillations by Blumenfeld, Zack, Koop, Mandy Miller, Prieto, Thomas E., Shreve, Lauren A., Velisar, Anca, Quinn, Emma J., Trager, Megan H., Brontë‐Stewart, Helen

“…ABSTRACT Background The objective of this study was to investigate the hypothesis that attenuation of subthalamic nucleus (STN) alpha‐/beta…”
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Modal Parameter Identification of Structures Using Reconstructed Displacements and Stochastic Subspace Identification by Guo, Xiangying, Li, Changkun, Luo, Zhong, Cao, Dongxing

“…A method of modal parameter identification of structures using reconstructed displacements was proposed in the present research. The proposed method was…”
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Updated attenuation tomography of Japan subduction zone by Wang, Zewei, Zhao, Dapeng

“…SUMMARY We determine an updated model of P- and S-wave attenuation (Qp, Qs) tomography of the Japan subduction zone using an improved inversion scheme, and derive the first Qp/Qs model of the study region…”
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Disturbance Attenuation and Pointing Control System Design for an Improved Disturbance-Free Payload Spacecraft by Jin, Ting, Kang, Guohua, Cai, Jian, Jia, Shaoxia, Yang, Jinghua, Zhang, Xinghua, Zhang, Zhenhua, Li, Long, Liu, Fangfang

“…The low-frequency disturbances transmitted by flexible cables are difficult to be attenuated for a novel disturbance-free payload spacecraft, which decreases…”
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Enhanced Seismic Attenuation Compensation: Integrating Attention Mechanisms With Residual Learning in Neural Networks by Wang, Ning, Shi, Ying, Ni, Jingyang, Fang, Jinwei, Yu, Bo

“… models, rapidly escalating algorithm intricacy, and computational burdens. Consequently, developing novel attenuation compensation methods that balance computational…”
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Low-frequency conductivity tensor of rat brain tissues inferred from diffusion MRI by Sekino, Masaki, Ohsaki, Hiroyuki, Yamaguchi-Sekino, Sachiko, Iriguchi, Norio, Ueno, Shoogo

“… × 3 conductivity tensor at the low‐frequency limit. The conductivity tensor of the tissue was inferred from the fast component of the diffusion tensor and a fraction of the fast component…”
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Optimization Method of Acoustic Filter Structures Composed of Helmholtz Resonators Based on Genetic Algorithm by Lv, Chenghao, Wang, Xiaoming, Mei, Yulin

“…This paper constructs an iteration method based on Genetic Algorithm to optimize the acoustic filter structure comprising Helmholtz resonators, providing a new approach to optimize the low-frequency…”
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Topological design of square lattice structure for broad and multiple band gaps in low-frequency range by Cheng, Qian, Guo, Hui, Yuan, Tao, Sun, Pei, Guo, Fengxiang, Wang, Yansong

“… However, there are still some challenges in the design of phononic crystals capable to prohibit the propagation of low-frequency waves…”
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Research on UAV image denoising effect based on improved Wavelet Threshold of BEMD by Pingjuan, NIU, Xueru, MA, Run, MAO, Pan, Jie, Wang, Shan, Hao, Shi, She, Huanlin

“… As for the low frequency, it is filtered by the exponential attenuation threshold algorithm of wavelet semi-soft threshold…”
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A Two-DOF Active-Passive Hybrid Vibration Isolator Based on Multi-Line Spectrum Adaptive Control by Yang, Qingchao, Ma, Zhaozhao, Zhou, Ruiping

“…In order to effectively control the low-frequency vibration of ship machinery, based on the improved multi-line spectrum adaptive control algorithm, a two-degree-of-freedom (two-DOF…”
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A de-noising algorithm to improve SNR of segmented gamma scanner for spectrum analysis by Li, Huailiang, Tuo, Xianguo, Shi, Rui, Zhang, Jinzhao, Henderson, Mark Julian, Courtois, Jérémie, Yan, Minhao

“…An improved threshold shift-invariant wavelet transform de-noising algorithm for high-resolution gamma-ray spectroscopy is proposed to optimize the threshold function of wavelet transforms and reduce…”
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Structure-Preserving Random Noise Attenuation Method for Seismic Data Based on a Flexible Attention CNN by Li, Wenda, Wu, Tianqi, Liu, Hong

“…The noise attenuation of seismic data is an indispensable part of seismic data processing, directly impacting the following inversion and imaging…”
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Reverse optimization design of OAM sound barrier based on acoustic metamaterials by Zhang, Xinhao, Zhao, Caiyou, Yu, Qi, Yi, Qiang, Lu, Tao, Wang, Ping, Chen, Rong

“… The low-frequency broadband noise attenuation is realized by an reverse design method relying on genetic algorithm-neural network (GA-NN…”
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Spherical-Harmonic-Domain Feedforward Active Noise Control Using Sparse Decomposition of Reference Signals from Distributed Sensor Arrays by Maeno, Yu, Mitsufuji, Yuki, Samarasinghe, Prasanga N., Murata, Naoki, Abhayapala, Thushara D.

“…Active acoustic noise attenuation over a sizable space is a challenging problem in signal processing…”
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