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检索条件"机构=The National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics"
519 条 记 录,以下是131-140 订阅
排序:
Simulation and analysis of repeater deceptive jamming to SAR based on shift-frequency
Simulation and analysis of repeater deceptive jamming to SAR...
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International Applied Computational Electromagnetics Society Symposium (ACES)
作者: Daixuan Li Jiaqi Liu Jianhua Li Lu Gao Pei Zheng Zhonghang He National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China
With the change of battlefield form, the pressure jamming requires the jammer to have large power, and the jamming efficiency is low, so the spoofing jamming comes into being. In this paper, the linear frequency modul... 详细信息
来源: 评论
The propagation characteristic of the QPSK signals in reentry plasmas  67
The propagation characteristic of the QPSK signals in reentr...
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67th International Astronautical Congress, IAC 2016
作者: Wu, Runhui Liu, Jiaqi Liu, Xin Ren, Aimin Zhang, Shengjun Meng, Gang National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematical China Academy of Launch Vehicle Technology No 1 Nan Da Hong Men Road Beijing China
A spacecraft entering the Earth's atmosphere is enveloped by a plasma layer or sheath due to shock heating of the surrounding air and ablation of the heat shield material, and the plasma sheath may strongly effect... 详细信息
来源: 评论
Intelligent Counter Guidance Regulated by Deep Reinforced Learning
Intelligent Counter Guidance Regulated by Deep Reinforced Le...
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IEEE Metrology for Aerospace
作者: Runle Du Jiaqi Liu Li Zhang Jianhua Li National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China
In the game of pursuit and evasion in outer space, it is of utmost importance for the evader to make appropriate maneuver to survive this challenge. In previous publications, the common approach of guidance behavior r... 详细信息
来源: 评论
A recursive predictive risk estimate for proximal algorithms
A recursive predictive risk estimate for proximal algorithms
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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
作者: Feng Xue Runle Du Jiaqi Liu National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China
For accurate signal reconstruction, proximal gradient methods generally require proper selection of regularization parameter. In this paper, we develop two data-driven optimization schemes, based on minimization of un... 详细信息
来源: 评论
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