Results 11 to 20 of about 17,263 (255)

Horizontal Geolocation Error Evaluation and Correction on Full-Waveform LiDAR Footprints via Waveform Matching

open access: yesRemote Sensing, 2023
The geolocation accuracy of spaceborne LiDAR (Light Detection And Ranging) data is important for quantitative forest inventory. Geolocation errors in Global Ecosystem Dynamics Investigation (GEDI) footprints are almost unavoidable because of the ...
Yifang Xu   +5 more
doaj   +1 more source

Validity of AI-Based Gait Analysis for Simultaneous Measurement of Bilateral Lower Limb Kinematics Using a Single Video Camera

open access: yesSensors, 2023
Accuracy validation of gait analysis using pose estimation with artificial intelligence (AI) remains inadequate, particularly in objective assessments of absolute error and similarity of waveform patterns.
Takumi Ino   +6 more
doaj   +1 more source

Foreshock properties illuminate nucleation processes of slow and fast laboratory earthquakes

open access: yesNature Communications, 2023
Understanding the connection between seismic activity and the earthquake nucleation process is a fundamental goal in earthquake seismology with important implications for earthquake early warning systems and forecasting.
David C. Bolton   +3 more
doaj   +1 more source

Waveform Similarity-Based Robust Pilot Protection for Transmission Lines [PDF]

open access: yesIEEE Transactions on Power Delivery, 2022
This paper proposes a robust pilot protection scheme based on waveform similarity that restricts the influence of outliers in fault line identification. By comparing two refactoring currents constructed using the time-domain sampling values of currents at the two terminals of a transmission line, a waveform similarity algorithm called the Kendall's Tau
Guangxiao Zhang   +3 more
openaire   +3 more sources

Traction Network Protection Based on Similarity of Transient Current Waveform

open access: yesFrontiers in Energy Research, 2022
In this paper, a protection scheme for the traction network of the penetrating co-phase traction direct power supply system based on the waveform similarity at both ends of line is proposed.
Shilong Chen   +6 more
doaj   +1 more source

Acoustic Emission Monitoring of Carbon Fibre Reinforced Composites with Embedded Sensors for In-Situ Damage Identification

open access: yesSensors, 2021
Piezoelectric sensors can be embedded in carbon fibre-reinforced plastics (CFRP) for continuous measurement of acoustic emissions (AE) without the sensor being exposed or disrupting hydro- or aerodynamics.
Arnaud Huijer   +2 more
doaj   +1 more source

Classification and model reconstruction method of non‐cooperative multifunctional radar waveform unit

open access: yesIET Radar, Sonar & Navigation, 2023
There are many variations in the form of multifunctional radar signals. At present, the problem associated with the highest concern in the field of electronic reconnaissance is the inversion of its working mode from the reconnaissance data.
Neng Jiang, Hongmin Zhang
doaj   +1 more source

Fusion fault line selection method of small current grounding fault based on VMD

open access: yesGong-kuang zidonghua, 2023
At present, the fault line selection method of coal mine distribution network has the problem of fault line selection failure when the relevant fault features are not obvious.
SUN Kongming   +5 more
doaj   +1 more source

基于波形相似性的单台地震目录校正

open access: yesDizhen xuebao, 2022
本文基于波形相似性提出了一种适用于地震序列中单台事件目录校正的方法。以福建仙游地震序列为研究对象,应用双差地震定位(HypoDD)算法对多台事件进行重定位,依据记录波形相似性将仙游地震序列事件划分为161个事件丛集,以多台事件重定位目录为参考,对单台事件目录进行校正。结果表明,本方法能够有效地实现单台事件目录的合理校正,有助于提升地震序列目录的完整性和地震目录的实用性。以HypoDD重定位目录为参考的校正目录可用于地震参数计算。分析校正后的仙游地震序列目录认为 ...
Hongcai Zhang   +7 more
doaj   +1 more source

Mattress-Based Non-Influencing Sleep Apnea Monitoring System

open access: yesSensors, 2023
A mattress-type non-influencing sleep apnea monitoring system was designed to detect sleep apnea-hypopnea syndrome (SAHS). The pressure signals generated during sleep on the mattress were collected, and ballistocardiogram (BCG) and respiratory signals ...
Pengjia Qi   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy