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检索条件"机构=The National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics"
515 条 记 录,以下是131-140 订阅
排序:
Ultra-wideband Magnetoelectric Dipole for 3G/LTE/Sub-6GHz 5G Applications
Ultra-wideband Magnetoelectric Dipole for 3G/LTE/Sub-6GHz 5G...
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2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio science Meeting, AP-S/URSI 2022
作者: Liu, Ganyu Zhu, Hailiang Wang, Kai Qiu, Yuwei Mou, Jinchao Zheng, Pei Wei, Gao Northwestern Polytechnical University Shaanxi Xi'an710129 China The Beijing Research Institute of Telemetry Beijing100094 China The National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing100076 China
A new ultra-wideband magnetoelectric (ME) dipole antenna is proposed as a dual-polarized base station antenna for 3G, LTE and Sub-6GHz 5G wireless networks. Double layers of ME dipoles with different sizes are combine... 详细信息
来源: 评论
A Novel Tunable FSS of miniaturized unit cell for lower frequency
A Novel Tunable FSS of miniaturized unit cell for lower freq...
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International Applied Computational Electromagnetics Society Symposium (ACES)
作者: Yichun Cui Shengjun Zhang Mingliang Wang Jiaqi Liu Xin Liu Yue Wang National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China
Large working bandwidth is now an attractive topic for FSS design, while it's hard to acquire a FSS structure with very wide bandwidth. So the way to actively tune the response frequency of the FSS, thus giving dy... 详细信息
来源: 评论
Individual Identification Algorithm of Known Emitters Based on Lightweight Binary Channels Neural Network  12
Individual Identification Algorithm of Known Emitters Based ...
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12th International Conference on Information technology in Medicine and Education, ITME 2022
作者: Gao, Jingpeng Song, Xia Gao, Lu Harbin Engineering University College of Information and Communication Engineering Harbin China Beijing Institute of Space Long March Vehicle National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China
Aiming at the problem that the traditional specific emitter identification method has poor feature extraction ability and limited recognition effect, this paper proposes a known specific emitter identification algorit... 详细信息
来源: 评论
Modulation recognition of emitter signals based on SDAE-ODCNN  5
Modulation recognition of emitter signals based on SDAE-ODCN...
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IET International Radar Conference 2020, IET IRC 2020
作者: Wang, Xu Gao, Jingpeng Gao, Lu Wang, Fu College of Information and Communication Engineering Harbin Engineering University Harbin China National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing Institute of Space Long March Vehicle Beijing China
In order to improve the recognition rate of emitter signals modulation under low signal noise ratio (SNR), an end-to-end method based on the stacked denoising autoencoder (SDAE) - one dimensional convolutional neural ... 详细信息
来源: 评论
Ellipse Fitting Based on Neural Network Optimization  41
Ellipse Fitting Based on Neural Network Optimization
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第41届中国控制会议
作者: Chenrong Long Peng Liu Qinglei Hu School of Automation Science and Electrical Engineering Beihang University National Key Laboratory of Science and Technology on Test Physics & Numerical Mathematics Beijing Institute of Space Long March Vehicle School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China.
Ellipse fitting is to estimate the parameters of the ellipse from a set of coplanar points,but the geometric distance from the plane point to the elliptic curve is difficult to calculate *** paper proposes a neural ne... 详细信息
来源: 评论
A Dual-Band Multilayer Heterogeneous Frequency Selective Surface with Miniaturized Unit Cell
A Dual-Band Multilayer Heterogeneous Frequency Selective Sur...
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2018 IEEE International Conference on Computational Electromagnetics, ICCEM 2018
作者: Cui, Yichun Zhang, Shengjun Liu, Jiaqi Liu, Xin Xue, Hui Zhang, Borong National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing100076 China Beijing Institute of System Engineering Beijing China Beijing Institute of Astronauctical Systems Engineering Beijing100076 China
In terms that most researches about Frequency Selective Surface (FSS) concentrate on single layer structure design or FSS with one fundamental mode, a multilayer heterogeneous dual-band frequency selective surface com... 详细信息
来源: 评论
The Role of Regional Ocean–Atmosphere Coupling in Simulating the2020 Extreme Mei-yu Event
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Advances in Atmospheric sciences 2025年 第5期 904-920页
作者: Kai LI Liwei ZOU Li DAN Hui ZHENG Zhongfeng XU Jianping TANG Fuqiang YANG Wenli FEI Taotao ZHANG Chunxiang SHI Zong-Liang YANG Key Laboratory of Regional Climate and Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of Sciences Key Laboratory of Meteorological Disaster (KLME) Ministry of Education & Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD) Nanjing University of Information Science & Technology State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG) Institute of Atmospheric Physics Chinese Academy of Sciences School of Atmospheric Sciences Nanjing University Institute of Applied Ecology Chinese Academy of Sciences National Meteorological Information Center China Meteorological Administration Department of Earth and Planetary Sciences Jackson School of GeosciencesThe University of Texas at Austin
The Yangtze–Huaihe River Valley(YHRV) experienced a record-breaking mei-yu season during the summer of 2020,prompting investigation into the role of regional ocean–atmosphere coupling in simulating this extreme even...
来源: 评论
Design of W-band Sheet Beam EIK
Design of W-band Sheet Beam EIK
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Asia-Pacific Conference on Microwave
作者: Shuyuan Chen Jinliang Bai Ran Zhang Pei Zheng Jiaqi Liu Xin Liu Hongyan Liu Lu Gao National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China
Microwave tube is a vacuum electron device which can be used for amplification in the microwave frequency range. Sheet beam Extended Interaction Klystron (EIK) is an attractive Millimeter Waves amplifier because of it... 详细信息
来源: 评论
Near-field Measurement Method for Electromagnetic Scattering of Electrically Large-scale Plasma
Near-field Measurement Method for Electromagnetic Scattering...
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International Applied Computational Electromagnetics Society Symposium (ACES)
作者: Jiaqi Liu Lu Gao Runhui Wu Xia Ai Song Chai Xin Liu Shengjun Zhang Yichun Cui National Key Laboratory of Science and Technology on Test Physics & Numerical Mathematics Beijing China
In the near-field test environment of 01500×3300mm vacuum vessel with low electromagnetic scattering, the relative measurement method is used, that is, the results of electrically large-scale plasma radar cross s... 详细信息
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An Updated Estimation of Radiative Forcing due to CO_2 and Its Effect on Global Surface Temperature Change
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Advances in Atmospheric sciences 2013年 第4期30卷 1017-1024页
作者: 张华 张若玉 石广玉 Laboratory for Climate Studies China Meteorological Administration National Climate Center Atmosphere Science Academy Nanjing University of Information Science and Technology State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics
New estimations of radiative forcing due to CO2 were calculated using updated concentration data of CO2 and a high-resolution radiative transfer model. The stratospheric adjusted radiative forcing (ARF) due to CO2 f... 详细信息
来源: 评论