检索结果-内蒙古大学图书馆

2023 IEEE MTT-S International Wireless Symposium, IWS 2023

作者： Xu, Jin-Jing Zhou, Wen-Ying Lu, Mai Lanzhou Jiaotong University Key Lab of Opto-Electronic Technology and Intelligent Control of Ministry of Education Gansu Lanzhou730070 China

ISBN: (纸本)9798350336535

This paper proposes a miniaturized stereo quasi-Yagi antenna array. When the distance between array elements is 0.16 λ0, the coupling is suppressed using the periodically ordered splitring resonators (SRRs). The simulation results indicate that the isolation of the decoupled antenna array at 2.4 GHz is increased by nearly four times, and the gain is almost unaffected. Meanwhile, the channel capacity of the suggested decoupled quasi-Yagi antenna array reaches 7.999 bps/Hz when the signal-to-noise ratio (SNR) is 20 dB. The effectiveness of our suggested decoupling structure is demonstrated. © 2023 IEEE.

关键词： Antenna arrays

来源：评论

学校读者我要写书评

暂无评论

Occupational Exposure of Therapeutic Staff in Deep Transcranial Magnetic Stimulation 35

Occupational Exposure of Therapeutic Staff in Deep Transcran...

引用

35th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2023

作者： Lu, Mai Ueno, Shoogo Lanzhou Jiaotong University Key Lab. of Opto-Electronic Technology and Intelligent Control of Ministry of Education Lanzhou China The University of Tokyo Graduate School of Medicine Department of Biomedical Engineering Tokyo Japan

ISBN: (纸本)9789463968096

This study presented dosimetry analysis for therapeutic staff exposed to magnetic pulses from double cone and Halo-circular assembly (HCA) coils during deep transcranial magnetic stimulation (dTMS) applications. The magnetic field and the induced electric field in realistic human body model exposure to dTMS coils have been obtained by employing the impedance method. The exposure level by both double cone and HCA coils were assessed according to the limits defined by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines. The HCA coil generates higher exposure to therapeutic staff compared to that of double cone coil. © 2023 International Union of Radio Science.

关键词： Electric fields

来源：评论

学校读者我要写书评

暂无评论

PI-Based Set-Point Learning control for Batch Processes with Unknown Dynamics and Nonrepetitive Uncertainties

引用

IEEE Transactions on Automatic control 2024年第6期70卷 3649-3664页

作者： Hao, Shoulin Liu, Tao Rogers, Eric Wang, Youqing Paszke, Wojciech Dalian University of Technology Key Lab. of Intelligent Control and Optimization for Industrial Equipment of Ministry of Eduction The Institute of Advanced Measurement and Control Technology Dalian116024 China Beijing University of Chemical Technology College of Information Science and Technology Beijing100029 China University of Zielona Góra Institute of Automation Electronic and Electrical Engineering Zielona Góra65-246 Poland

For industrial batch processes with unknown dynamics subject to nonrepetitive initial conditions and disturbances, this paper develops a novel adaptive data-driven set-point learning control (ADDSPLC) scheme based on only the measured process input and output data, which has two loops, one for the dynamics within a batch and the other for the batch-to-batch dynamics. In the former case, a model-free tuning strategy is firstly presented for determining the closed-loop PI controller parameters. For the latter case, a set-point learning control law with adaptive set-point learning gain and gradient estimation is developed for batch run optimization. Robust convergence of the output tracking error is rigorously analyzed together with the boundedness of adaptive learning gain and real-time updated set-point command. Moreover, another iterative extended state observer based (ADDSPLC) scheme is developed with rigorous convergence and boundedness analysis, to enhance the robust tracking performance against nonrepetitive uncertainties. Finally, two illustrative examples from the literature are used to demonstrate the effectiveness and superiority of the new schemes over the recently developed data-driven learning control designs. © 1963-2012 IEEE.

关键词： Batch data processing

来源：评论

学校读者我要写书评

暂无评论

Fault identification of rotating machinery based on multiscale convolution and deep residual networks 9

Fault identification of rotating machinery based on multisca...

引用

9th International Symposium on Sensors, Mechatronics, and Automation System, ISSMAS 2023

作者： Wang, Huihui Fan, Tianqi Qiu, Sen Liu, Long School of Intelligence and Electronic Engineering Dalian Neusoft University of Information Dalian116023 China Key Lab. of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education The School of Control Science and Engineering Dalian University of Technology Dalian116024 China

ISBN: (纸本)9781510672802

Rotating machinery and equipment have a wide range of industrial applications, and it is important to perform intelligent fault detection during their operation. In order to fully capture the multi-scale features of mechanical fault data while solving the degradation problem of deep networks, we propose an intelligent fault detection model combining multi-scale convolution and deep residual networks. We validate it on four publicly availab.e datasets, and the results demonstrate the excellent performance of the proposed method. © 2024 SPIE.

关键词： Convolution Feature extraction Deep learning Machine learning Vibration Data modeling Lithium Convolutional neural networks Data centers Signal processing

来源：评论

学校读者我要写书评

暂无评论

Speaker recognition based on improved ECAPA-TDNN network 5

Speaker recognition based on improved ECAPA-TDNN network

引用

2023 5th International Conference on Information Science, Electrical, and Automation Engineering, ISEAE 2023

作者： Chen, Hongyan Ling, Xiaoming Zhang, Xiaoyu Zhang, Zhen Dang, Zeifei Ji, Xiang Key Lab of Opto-Electronic Technology and Intelligent Control of Ministry of Education Lanzhou Jiaotong University Lanzhou730070 China National Engineering Research Center for Technology and Equipment of Environmental Deposition Lanzhou Jiaotong University Lanzhou730070 China

ISBN: (纸本)9781510667440

Speaker recognition, also known as voiceprint recognition, is a biometric technology with wide practicability at present. This paper summarizes and compares and analyzes the main research methods of speaker recognition at home and abroad at this stage, and proposes an improved ECAPA_TDNN algorithm. It is proved by experiments that the improved ECAPA_TDNN algorithm in this paper is superior to the classical algorithm in terms of accuracy and loss. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Speech recognition

来源：评论

学校读者我要写书评

暂无评论

Reconstructing Three-Degree-of-Freedom Pose through Temporal Phase-Shifted Low-Coherence Spatial Interferograms 16

Reconstructing Three-Degree-of-Freedom Pose through Temporal...

引用

16th Pacific Rim Conference on Lasers and Electro-Optics, CLEO-PR 2024

作者： Shi, Liheng Zhang, Jinxu Gu, Yingying Gai, Fangqin Liu, Jing Wu, Guanhao Tsinghua University State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision Instrument Beijing100084 China Yangtze Delta Region Institute of Tsinghua University Zhejiang Research Center of Opto-electronic Sensing Zhejiang 314006 China Beijing Institute of Control Engineering Space Optoelectronic Measurement and Perception Lab. Beijing100190 China China Academy of Space Technology National Key Laboratory of Space Intelligent Control Beijing100094 China

We introduce a method for measuring three degrees of freedom using low-coherence light and temporal phase-shifting to discern position and orientation from the coherence envelope shape, enabling direct measurement wit... 详细信息

ISBN: (纸本)9798350372076

关键词： Degrees of freedom (mechanics)

来源：评论

学校读者我要写书评

暂无评论

Physical layer security verification system based on software defined radio 4

Physical layer security verification system based on softwar...

引用

4th International Conference on Computer Science and Communication technology, ICCSCT 2023

作者： Liu, Yonghuang Song, Huanhuan Wen, Hong Yu, Ziyang Li, Wen School of Aeronautics and Astronautics University of Electronic Science and Technology of China Sichuan Chengdu611731 China Aircraft Swarm Intelligent Sensing and Cooperative Control Key Lab. of Sichuan Province University of Electronic Science and Technology of China Sichuan Chengdu611731 China Intelligent IoT Communication Technology Engineering Research Center of Sichuan Province University of Electronic Science and Technology of China Sichuan Chengdu611731 China

ISBN: (纸本)9781510671232

Compared with traditional encryption technology, physical layer security technology uses channel noise to realize the key with the same length as plaintext. Even if the eavesdropper has strong cracking computing power, it cannot decipher the confidential data without the key, which can truly realize "One-Time-Pad" and ensure the security of wireless communication. In this paper, we propose a physical layer security verification system based on software defined radio. In the system, base stations and legitimate users can obtain channel information efficiently, and eavesdroppers can use the powerful storage and computing resources of the cloud server to decrypt confidential signals without time constraints. Based on the system, this paper designs and verifies the physical layer security scheme with joint precoding and Artificial Noise, which fills the gap of the prototype verification platform of information-theoretic security and provides strong support for verifying the unconditional security features of the physical layer security technology. © 2023 SPIE.

关键词： Verification

来源：评论

学校读者我要写书评

暂无评论

USRP-based real-time experimentation platform for artificial-noise-aided MIMO system 4

USRP-based real-time experimentation platform for artificial...

引用

4th International Conference on Computer Science and Communication technology, ICCSCT 2023

作者： Yu, Ziyang Song, Huanhuan Wen, Hong Liu, Yonghuang Li, Wen Hou, Wenjing School of Aeronautics and Astronautics University of Electronic Science and Technology of China Sichuan Chengdu611731 China Aircraft Swarm Intelligent Sensing and Cooperative Control Key Lab. of Sichuan Province University of Electronic Science and Technology of China Sichuan Chengdu611731 China Intelligent IoT Communication Technology Engineering Research Center of Sichuan Province University of Electronic Science and Technology of China Sichuan Chengdu611731 China

ISBN: (纸本)9781510671232

Artificial noise, as a physical layer security technique, differs from traditional communication security mechanisms based on cryptography as it cannot be easily cracked by rapidly developing computational power. The theoretical research on the security of artificial-noise-assisted MIMO (Multiple-Input Multiple-Output) communication systems is quite comprehensive. However, the practical effectiveness of artificial noise in real-world systems still needs to be further validated through experimentation. This paper proposes a real-time platform for simulating experiments on MIMO communication systems assisted by artificial noise. By analyzing experimental data, it demonstrates that artificial noise has a slight impact on the reliability of legitimate MIMO communication systems while effectively enhancing system security. © 2023 SPIE.

关键词： MIMO systems

来源：评论

学校读者我要写书评

暂无评论

Design of Miniaturized Stereo Decoupled Quasi-Yagi Antenna Array by Using SRRs

Design of Miniaturized Stereo Decoupled Quasi-Yagi Antenna A...

引用

IEEE International Wireless Symposium (IWS)

作者： Jin-Jing Xu Wen-Ying Zhou Mai Lu Key Lab of Opto-Electronic Technology and Intelligent Control of Ministry of Education Lanzhou Jiaotong University Gansu Lanzhou

This paper proposes a miniaturized stereo quasi-Yagi antenna array. When the distance between array elements is 0.16 λ 0 , the coupling is suppressed using the periodically ordered splitring resonators (SRRs). The simulation results indicate that the isolation of the decoupled antenna array at 2.4 GHz is increased by nearly four times, and the gain is almost unaffected. Meanwhile, the channel capacity of the suggested decoupled quasi-Yagi antenna array reaches 7.999 bps/Hz when the signal-to-noise ratio (SNR) is 20 dB. The effectiveness of our suggested decoupling structure is demonstrated.

关键词：

来源：评论

学校读者我要写书评

暂无评论

State Estimation for Discrete-Time Semi-Markovian Jump Piecewise-Affine Systems with Complex Semi-Markovian Kernel 63

State Estimation for Discrete-Time Semi-Markovian Jump Piece...

引用

63rd IEEE Conference on Decision and control, CDC 2024

作者： Tang, Qi Liu, Tao Sun, Xi-Ming University of Hong Kong Department of Electrical and Electronic Engineering Hong Kong Shenzhen Institute of Research and Innovation The University of Hong Kong Hong Kong Dalian University of Technology Key Lab. of Intelligent Control and Optimization for Industrial Equipment of Ministry of Education Dalian116024 China Dalian University of Technology School of Control Science and Engineering Dalian116024 China

ISBN: (纸本)9798350316339

This paper addresses state estimation for discretetime semi-Markovian jump piecewise-affine (PWA) systems. To handle uncertainties caused by unknown disturbances, we propose an analysis method that considers all transfer paths between different regions within the same mode. We then examine the mean-square exponential stability and L∞ performance of the error dynamic system by constructing Lyapunov functions that depend on mode, region, and sojourn time. The related criteria are derived using ellipsoidal outer approximation. Based on these criteria, we design L∞ observers. Finally, we demonstrate the applicability of our method through a numerical example. © 2024 IEEE.

关键词： Lyapunov functions

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：