Results 21 to 30 of about 17,263 (255)

Identify incipient faults through similarity comparison with waveform split-recognition framework

Frontiers in Energy Research, 2023
Introduction: Incipient faults of distribution networks, if not detected at an early stage, could evolve into permanent faults and result in significant economic losses. It is necessary to detect incipient faults to improve power grid security.
Xinlu Tang, Qiushi Cui, Yang Weng, Yuxiang Su, Dongdong Li   +4 more
doaj   +1 more source

Perceptual pitch shift for sounds with similar waveform autocorrelation [PDF]

Acoustics Research Letters Online, 2002
Perceptual pitch shift for sounds with similar waveform ...
Pressnitzer, Daniel, Cheveigné, Alain De, Winter, Ian M.   +2 more
openaire   +2 more sources

Radar Waveform Design Method Based on Cascade Optimization Processing under Missing Clutter Prior Data

Leida xuebao, 2023
Cognitive radar waveform design often relies on accurate clutter prior information. When prior information data is missing, the constructed clutter model will be severely mismatched, affecting the radar’s ability to suppress clutter.
Yingkui ZHANG, Guohao SUN, Suchuan ZHONG, Xianxiang YU   +3 more
doaj   +1 more source

Joint Design of Transmitting Waveform and Receiving Filter via Novel Riemannian Idea for DFRC System

Remote Sensing, 2023
Recently, the problem of target detection in noisy environments for the Dual-Functional Radar Communication (DFRC) integration system has been a hot topic. In this paper, to suppress the noise and further enhance the target detection performance, a novel
Yinan Zhao, Zhongqing Zhao, Fangqiu Tong, Ping Sun, Xiang Feng, Zhanfeng Zhao   +5 more
doaj   +1 more source

Search and retrieval method of similar plasma waveforms

Fusion Engineering and Design, 2004
Abstract Fusion plasma experiments often produce many channels of time-varying waveforms, and the assistance of a computational method to find similar waveforms could accelerate data analysis. To accelerate computer aided search, a so-called “thumb-indexed” reference will be required in the waveform database.
H Nakanishi, T Hochin, M Kojima
openaire   +1 more source

Algorithm for Designing Waveforms Similar to Linear Frequency Modulation Using Polyphase-Coded Frequency Modulation

Remote Sensing
Linear frequency modulation (LFM) waveforms have been widely adopted due to their excellent performance characteristics, such as good Doppler tolerance and ease of physical implementation. However, LFM waveforms suffer from high autocorrelation sidelobes
Pengpeng Wang, Zhan Wang, Peng You, Mengyun An   +3 more
doaj   +1 more source

Classification of sags according to their origin based on the waveform similarity [PDF]

2008 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America, 2008
A statistical method for classification of sags their origin downstream or upstream from the recording point is proposed in this work. The goal is to obtain a statistical model using the sag waveforms useful to characterise one type of sags and to discriminate them from the other type.
Meléndez i Frigola, Joaquim, Berjaga Moliné, Xavier, Herraiz Jaramillo, Sergio, Barrera Núñez, Víctor Augusto, Sánchez, Jorge, Castro, M.   +5 more
openaire   +2 more sources

Optimisation of practically constrained waveforms for Rician target detection with multiple‐input‐multiple‐output radar

IET Radar, Sonar & Navigation, 2022
In this paper, the waveform design for Rician target detection with multiple‐input‐multiple‐output radar is addressed. The relative entropy between the distributions of the observations under two hypotheses is employed as the design metric.
Xuyang Wang, Bo Tang, Ming Zhang
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

Advanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee, Sofía Cruces, Xiaohua Liu, Yang Chen, Vasilis A. Maroufidis, Janghyun Jo, Lukas Völkel, Dennis Braun, Michael Möller, Leon Brackmann, Holger Kalisch, Michael Heuken, Andrei Vescan, Rafal E. Dunin‐Borkowski, Joachim Mayer, Stefan Wiefels, Max C. Lemme   +16 more
wiley   +1 more source