Results 11 to 20 of about 35,573 (266)
Effects of waveform parameters on the breakdown characteristics of OIP subjected to impulse voltages and evaluation method for waveform equivalence [PDF]
IET Science, Measurement & Technology, 2019 The impulse voltage wave invading a transformer is not the double exponential impulse wave (DEIW) specified by the IEC but a non‐standard waveform with oscillation attenuation characteristics, and this fact leads to doubts about the scientificity and optimality of insulation coordination.
Wenxia Sima +5 more
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A Non-Uniform Interrupted-Sampling Repeater Jamming Method for Intra-Pulse Frequency Agile Radar
Remote Sensing, 2023 The existing research proposes an intra-pulse frequency agile radar waveform with “active” anti-jamming characteristics. It uses the discontinuity and periodicity of the interrupted-sampling repeater jamming and combines the anti-jamming algorithm to ...
Zongzheng Sun, Yinghui Quan, Zhixing Liu
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Doppler sensing aided HEMP waveform parameter estimation [PDF]
Journal of Hebei University of Science and TechnologyAiming at the problem of significant Doppler frequency shift (DFS) in the waveform of high altitude electromagnetic pulse (HEMP) emitted by aircraft moving at high speed, which severely reduces the accuracy of HEMP waveform parameter estimation, a method
Chaojin QING +3 more
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Leida xuebao, 2017 Space, time, and phase synchronization problems make weak target detection evenmore difficult in the Non-cooperative Passive Bistatic Radar (NPBR) than in conventional radar systems.
Qian Lichang, Xu Jia, Hu Guoxu
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Remote 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
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Frontiers in Earth Science, 2023 Short-offset towed streamer data, and sparse ocean-bottom seismometer (OBS) data are not conducive to applying multi-parameter full waveform inversion (FWI) in production.
Tao Yang +4 more
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Acoustic multi-parameter full waveform inversion based on the wavelet method [PDF]
Inverse Problems in Science and Engineering, 2020 In this paper, the acoustic full waveform inversion based on the wavelet method is proposed. It allows to determine density and velocity parameters simultaneously in the time domain.
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Aerodynamic Optimization Design on Supersonic Transports Considering Sonic Boom Intensity
Xibei Gongye Daxue Xuebao, 2020 It is key points to improve the aerodynamic efficiency and decrease the sonic-boom intensity for the supersonic aircraft design. Sonic-boom prediction method with high precision combining the near-field sonic-boom prediction based on Reynolds-Averaged ...
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Method to Solve Underwater Laser Weak Waves and Superimposed Waves
Sensors, 2023 With the rapid development of Lidar technology, the use of Lidar for underwater terrain detection has become feasible. There is still a challenge in the process of signal resolution: the underwater laser echo signal is different to propagating in the air,
Chuanli Kang +6 more
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Research and Application of Acoustic Emission Signal Processing Technology
IEEE Access, 2019 Acoustic emission signal processing has always been a key problem in damage assessment of components and materials, and parameter analysis and waveform analysis are two important means of acoustic emission signal processing.
Liang Zhao, Le Kang, Shuang Yao
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