TWO-DIMENSIONAL

作品数：2346被引量：3592H指数：18
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Design of mobile stage location system based on two-dimensional laser radar
《High Technology Letters》2025年第1期20-31,共12页WANG Bo ZHU Ping ZHENG Qingsong YANG Jiaqi 
Supported by the Philosophy and Social Sciences Planning Project of Zhejiang Province(No.23NDJC374YB);the Major Humanities and Social Sciences Research Projects in Zhejiang Higher Education Institutions(No.2024QN067).
This paper addresses the design problem of an embedded mobile stage location system based on a two-dimensional laser radar.The mobile stage is a piece of important performance equipment in art performances,and the pos...
关键词：mobile stage positioning laser radar Kalman filter distributed fusion 
Security-Enhanced Directional Modulation Based on Two-Dimensional M-WFRFT被引量：1
《China Communications》2024年第5期229-248,共20页Zhou Zhuang Luo Junshan Wang Shilian Xia Guojiang 
supported by National Natural Science Foundation of China(No.62171445)。
Directional modulation(DM)is one of the most promising secure communication techniques.However,when the eavesdropper is co-located with the legitimate receiver,the conventional DM has the disadvantages of weak anti-sc...
关键词：bit error rate directional modulation phased array secrecy rate weighted fractional Fourier transform 
Automatic modulation recognition of radiation source signals based on two-dimensional data matrix and improved residual neural network
《Defence Technology（防务技术）》2024年第3期364-373,共10页Guanghua Yi Xinhong Hao Xiaopeng Yan Jian Dai Yangtian Liu Yanwen Han 
National Natural Science Foundation of China under Grant No.61973037;China Postdoctoral Science Foundation under Grant No.2022M720419。
Automatic modulation recognition(AMR)of radiation source signals is a research focus in the field of cognitive radio.However,the AMR of radiation source signals at low SNRs still faces a great challenge.Therefore,the ...
关键词：Automatic modulation recognition Radiation source signals Two-dimensional data matrix Residual neural network Depthwise convolution 
Sensing Matrix Optimization for Random Stepped-Frequency Signal Based on Two-Dimensional Ambiguity Function被引量：1
《Chinese Journal of Electronics》2024年第1期161-174,共14页Mingjiu LYU Hao CHEN Jun YANG Xia WU Ming ZHOU Xiaoyan MA 
supported by the National Natural Science Foundation of China(Grant No.61671469)。
Compressive sensing technique has been widely applied to achieve range-Doppler reconstruction of high frequency radar by utilizing sparse random stepped-frequency(SRSF)signal,which can suppress the complex electromagn...
关键词：Sparse random stepped-frequency signal Two-dimensional ambiguity function Waveform design Compressed sensing Sensing matrix optimization 
Nonlinear Trajectory SAR Imaging Algorithms:Overview and Experimental Comparison
《Journal of Beijing Institute of Technology》2023年第6期653-669,共17页Yi Xiong Buge Liang Ning Wang Jianlai Chen 
supported in part by the National Natural Science Foundation of China(No.62271510);in part by Young Elite Scientists Sponsorship Program by CAST(No.2022QNRC001);in part by the Natural Science Foundation of Hunan Province(No.2021JJ40781);in part by the Open Fund of Laboratory of Pinghu.
The nonlinear characteristics of the motion trajectory of the synthetic aperture radar(SAR)flight platform can lead to severe two-dimensional space-variance characteristics of the signal,greatly affecting the imaging ...
关键词：two-dimensional space-variance nonlinear synthetic aperture radar(NL-SAR) slant range model 
Innovative design and optimization of a two-dimensional deployable nine-grid planar antenna mechanism with a flat reflection surface被引量：2
《Chinese Journal of Aeronautics》2023年第11期529-550,共22页Bo CHEN Ze JIANG Xinlu WEI Luyao GUO Xin ZHOU Yundou XU Junjie QIAN Yongsheng ZHAO 
supported by the National Natural Science Foundation of China(No.52075467).
With the development of the aerospace industry,space missions are becoming more complicated and diversified,and there is a demand for antenna mechanisms with a larger physical aperture.In this paper,a planar deployabl...
关键词：Design optimization KINEMATICS Planar antenna Structural design Two-dimensional expansion 
Design of two-dimensional spatially coupled LDPC codes for combating burst erasures
《High Technology Letters》2023年第3期288-294,共7页刘洋 HE Jinglin WANG Bin ZHANG Yuzhi 
Supported by the National Natural Science Foundation of China(No.U19B2015,62271386,61801371).
Spatially-coupled low-density parity-check(SC-LDPC)codes are prominent candidates for fu-ture communication standards due to their‘threshold saturation’properties.However,when facing burst erasures,the decoding proc...
关键词：burst erasure channel SC-LDPC code density evolution decoding performance 
Frequency-angle two-dimensional reflection coefficient modeling based on terahertz channel measurement被引量：3
《Frontiers of Information Technology & Electronic Engineering》2023年第4期626-632,共7页Zhaowei CHANG Jianhua ZHANG Pan TANG Lei TIAN Li YU Guangyi LIU Liang XIA 
Project supported by the National Key R&D Program of China(No.2020YFB1805002);the National Science Fund for Distinguished Young Scholars(No.61925102);the National Natural Science Foundation of China(Nos.62031019,92167202,and 62101069);the BUPT-CMCC Joint Innovation Center。
Terahertz(THz)channel propagation characteristics are vital for the design,evaluation,and optimization of THz communication systems.Moreover,reflection plays a significant role in channel propagation.In this correspon...
关键词：CHANNEL REFLECTION COEFFICIENT 
Stepped frequency chirp signal imaging radar jamming using two-dimensional nonperiodic phase modulation被引量：1
《Frontiers of Information Technology & Electronic Engineering》2023年第3期433-446,共14页Qihua WU Feng ZHAO Tiehua ZHAO Xiaobin LIU Junjie WANG Shunping XIAO 
Project supported by the Natural Science Foundation of Hunan Province,China(No.2022JJ40561);the Scientific Research Program of National University of Defense Technology,China(No.ZK22-46);the National Natural Science Foundation of China(Nos.61890542,62001481,and 62071475)。
Stepped frequency chirp signal obtains high-resolution radar images by synthesizing multiple narrowband chirp pulses.It has been one of the most commonly used wideband radar waveforms due to its lower demand for radar...
关键词：Radar jamming Stepped frequency chirp signal Nonperiodic phase modulation Wideband radar 
Two-Dimensional Projection-Based Wireless Intrusion Classification Using Lightweight EfficientNet
《Computers, Materials & Continua》2022年第9期5301-5314,共14页Muhamad Erza Aminanto Ibnu Rifqi Purbomukti Harry Chandra Kwangjo Kim 
Internet of Things(IoT)networks leverage wireless communication protocols,which adversaries can exploit.Impersonation attacks,injection attacks,and flooding are several examples of different attacks existing in Wi-Fi ...
关键词：Intrusion detection impersonation attack convolutional neural network anomaly detection 
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