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检索条件"机构=National Key Laboratory of Science and Technology on Test Physics&Numerical Mathematics"
248 条 记 录,以下是191-200 订阅
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Simulation of a dual-polarized printed dipole antenna with a rectagular cavity  11
Simulation of a dual-polarized printed dipole antenna with a...
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11th IEEE Asia-Pacific Conference on Antennas and Propagation, APCAP 2023 - Proceedings
作者: Wang, Qian Zhang, Jianchuan Liu, Jiaqi Fang, Zhongyi Fang, Liang Zhang, Junrui The Research Institute for Special Structures of Aeronautical Composite Avic The Aeronautical Science Key Lab for High Performance Electromagnetic Windows Shandong Ji'nan China School of Information Science and Engineering Harbin Institute of Technology at Weihai Weihai264209 China Beijing Institute of Space Long March Vehicle National Key Laboratory of Science and Technology on Test Physics & Numerical Mathematics Beijing100076 China Shandong University at Weihai Weihai264209 China
This paper presents the design of a dual-polarized printed dipole antenna operating at 2GHz. In order to enhance the radiation characteristics of the antenna, a rectangular metallic cavity is positioned beneath the pr... 详细信息
来源: 评论
Suppressing the Effects of Ionospheric Scintillation on Geosynchronous SAR by Optimised Orbit Design
Suppressing the Effects of Ionospheric Scintillation on Geos...
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International Conference on Radar Systems
作者: YuanHao Li XiangRong Liu Cheng Hu XiChao Dong Beijing Institute of Technology Beijing Beijing CN National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics 100076 China Beijing Key Laboratory of Embedded Real-time information Processing Technology 100081 China
An L band geosynchronous synthetic aperture radar (GEO SAR) will be sensitive to ionosphere scintillation because of its low carrier frequency. Meanwhile, because of the high orbit, GEO SAR has a higher probability to... 详细信息
来源: 评论
Investigation of the SISAR imaging of the ground moving target under multipath interference
Investigation of the SISAR imaging of the ground moving targ...
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IEEE national Conference on Radar
作者: Xiaoliang Li Cheng Hu Dazhi Zeng Teng Long Xiangrong Liu School of Information and Electronics Beijing Institute of Technology Beijing China Test Physics & Numerical Mathematical National Key Laboratory of Science and Technology Beijing China
In the ground-based FSR, the strong ground reflected signal seriously cancel the useful signal, as a result the estimation methods of the target images in current SISAR imaging technology are no longer applicable. The... 详细信息
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Statistical analysis and simulation method of forward scattering clutter in bistatic radar
Statistical analysis and simulation method of forward scatte...
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IET International Radar Conference 2013
作者: Chuan-fang Zhang Chang-jiang Liu Cheng Hu Xiang-rong Liu School of Information and Electronics Beijing Institute of Technology China 100081 National Key Laboratory of Science and Technology on Test Physics & Numerical Mathematical Beijing China
The research of statistical properties and simulation methods of radar clutter have vital importance to the design, simulation and development of radar systems. Based on the analysis of some experimental data of forwa...
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Periodic Structures and Its Interaction to EM Wave Spectrum, Ideas From X-Ray to MW Wave
Periodic Structures and Its Interaction to EM Wave Spectrum,...
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International Applied Computational Electromagnetics Society Symposium (ACES)
作者: Yunhui Tang Lu Gao Ruzhi Wang Shengjun Zhang Hang Song Yuning Zhang Xia Ai Lei Xie Luting Jiao Xiaoling Zhang Jing He Jiaqi Liu Beijing University of Technology Beijing China National Key Laboratory of Science & Technology on Test Physics and Numerical Mathematics Beijing China Beijing Institute of Space Long March Vehicle Beijing China
X-ray is an important tool for characterizing materials, which is based on the idea that all crystals are composed of atoms or molecules stacking in a particular type, basically expressing as unit cell, diffracting th... 详细信息
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Dual-Polarized Filtering Antenna for Base Station Application
Dual-Polarized Filtering Antenna for Base Station Applicatio...
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International Conference on Microwave and Millimeter Wave technology Proceedings
作者: Chao Feng Ding Xiu Yin Zhang Zhi Jie Zhang Yun Fei Cao Lu Gao Jun Yang School of Electronic and Information Engineering South China University of Technology Guangzhou China The State Key Laboratory of Millimeter Waves Nanjing China National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China
In this paper, a broadband dual-polarized filtering dipole is proposed for base station application. Filtering response is obtained by adding simple slits on each arm of the traditional dual polarized dipole antenna. ...
来源: 评论
PolSAR Image Edge Detection via Structure Tensor Analysis
PolSAR Image Edge Detection via Structure Tensor Analysis
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IEEE International Geoscience and Remote Sensing Symposium
作者: Xiangrong Liu Wei Mao Shunsheng Zhang Lei Wu Wen-Qin Wang National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China Sch. of Info. Comm. Engin. University of Electronic Science and Technology of China Chengdu China
The weighted structure tensor (ST) can be usually used on edge detection of multi-channel images, including polarimetric synthetic aperture radar (polSAR) images. The traditional weighting method is average weighting,... 详细信息
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Two-Dimensional Imaging With Stationary Nonuniform Frequency Diverse Array Transmitter
Two-Dimensional Imaging With Stationary Nonuniform Frequency...
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IEEE International Geoscience and Remote Sensing Symposium
作者: Xiangrong Liu Wei Mao Lei Wu National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics Beijing China Sch. of Info. Comm. Engin. University of Electronic Science and Technology of China Chengdu China
This paper proposes a simple two-dimensional imaging via stationary nonuniform frequency diverse array (FDA) transmitter by exploiting FDA both range and angle dependent transmit beampattern. The nonuniform FDA transm... 详细信息
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X-band narrowband high-temperature super-conducting filter with high selectivity
X-band narrowband high-temperature super-conducting filter w...
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IET International Radar Conference 2015
作者: L. Gao Z. Y. Jiang J. Q. Liu H. Y. Liu J. L. Bai F. Xu H. Li S. Y. Chen L. Sun Y. B. Bian J. Wang Y. S. He National Key Laboratory of Science and Technology on Test Physics and Numerical Mathematics P.O. box 9200 Beijing 100076 China Chinese Academy of Sciences Beijing Beijing CN
This paper presents a development of a narrowband hightemperature superconducting filter with high selectivity. The center frequency of this filter is 8.625 GHz and the 3 dB bandwidth is 156 MHz (a fractional bandwidt... 详细信息
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Design and Simulation of a Planar Printed Slot Array Antenna
Design and Simulation of a Planar Printed Slot Array Antenna
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2023 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2023
作者: Xiaofei, Shi Jiaxin, Shi Jiaqi, Liu Zhongyi, Fang Lei, Wang Lizhong, Song Shandong Institute of Space Electronic Technology Yantai264003 China Harbin Institute of Technology School of Electronics and Information Engineering Harbin150001 China Harbin Institute of Technology at Weihai School of Information Science and Engineering Weihai264209 China Beijing Institute of Space Long March Vehicle National Key Laboratory of Science and Technology on Test Physics & Numerical Mathematics Beijing100076 China Shandong Huayu Aerospace Technology Co. Ltd Yantai264003 China
This paper designs an array antenna with a planar printed structure. The antenna element adopts a rectangular slot antenna, and the antenna element is excited by a T-shaped feeding structure. The microstrip power dist... 详细信息
来源: 评论