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Fixed-Time Consensus-Based Nash Equilibrium Seeking

IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 267-269页

作者： Mengwei Sun Jian Liu Lu Ren Changyin Sun the Institutes of Physical Science and Information Technology Anhui UniversityHefei 230601China IEEE the School of Automation and the Key Laboratory of Measurement and Control of Complex System of Engineering Ministry of EducationSoutheast UniversityNanjing 210096China the School of Artificial Intelligence and the Engineering Research Center of Autonomous Unmanned System Technology Ministry of EducationAnhui UniversityHefei 230601China

Dear Editor,This letter examines the fixed-time stability of the Nash equilibrium(NE)in non-cooperative *** propose a consensus-based NE seeking algorithm for situations where players do not have perfect information and communicate via a topology *** proposed algorithm can achieve NE in a fixed time that does not depend on initial conditions and can be adjusted in advance.

关键词： Fixed seeking letter

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Enhancement of magnetic and dielectric properties of low temperature sintered NiCuZn ferrite by Bi_(2)O_(3)-CuO additives

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Chinese Physics B 2022年第4期31卷 660-666页

作者： Jie Li Bing Lu Ying Zhang Jian Wu Yan Yang Xue-Ning Han Dan-Dan Wen Zheng Liang Huai-Wu Zhang State Key Laboratory of Electronic Thin Film and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 610054China College of Communication Engineering Chengdu University of Information TechnologyChengdu 610225China Chongqing Engineering Research Center of Intelligent Sensing Technology and Microsystem Chongqing University of Post and TelecommunicationsChongqing 400065China

With a series of 1.0 wt%Bi_(2)O_(3)-x wt%CuO(x=0.0,0.2,0.4,0.6,and 0.8)serving as sintering additives,Ni_(0.23)Cu_(0.32)Zn_(0.45)Ee_(2)O_(4)ferrites are successfully synthesized at a low temperature(900℃)by using the solid state reaction *** effects of the additives on the phase formation,magnetic and dielectric properties as well as the structural and gyromagnetic properties are *** x-ray diffraction(XRD)results indicate that the added Bi_(2)O_(3)-CuO can lower the synthesis temperature significantly without the appearing of the second *** scanning electron microscope(SEM)images confirm that Bi_(2)O_(3)is an important factor that determines the sintering behaviors,while CuO affects the grain size and *** CuO content x=0.4 or 0.6,the sample shows high saturation magnetization,low coercivity,high real part of magnetic permeability,dielectric permittivity,and small ferromagnetic resonance linewidth(ΔH).The NiCuZn ferrites are a promising new generation of high-performance microwave devices,such as phase shifters and isolators.

关键词： NiCuZn ferrite Bi_(2)O_(3)-CuO additive magnetic properties dielectric properties ferromagnetic resonance(FMR)linewidth

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Hybrid Dipper Throated and Grey Wolf Optimization for Feature Selection Applied to Life Benchmark Datasets

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Computers, Materials & Continua 2023年第2期74卷 4531-4545页

作者： Doaa Sami Khafaga El-Sayed M.El-kenawy Faten Khalid Karim Mostafa Abotaleb Abdelhameed Ibrahim Abdelaziz A.Abdelhamid D.L.Elsheweikh Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Communications and Electronics Delta Higher Institute of Engineering and TechnologyMansoura35111Egypt Faculty of Artificial Intelligence Delta University for Science and TechnologyMansoura35712Egypt Department of System Programming South Ural State UniversityChelyabinsk454080Russia Computer Engineering and Control Systems Department Faculty of EngineeringMansoura UniversityMansoura35516Egypt Department of Computer Science Faculty of Computer and Information SciencesAin Shams UniversityCairo11566Egypt Department of Computer Science College of Computing and Information TechnologyShaqra University11961Saudi Arabia Department of Computer Science Faculty of Specific EducationMansoura UniversityEgypt

Selecting the most relevant subset of features from a dataset is a vital step in data mining and machine *** feature in a dataset has 2n possible subsets,making it challenging to select the optimum collection of features using typical *** a result,a new metaheuristicsbased feature selection method based on the dipper-throated and grey-wolf optimization(DTO-GW)algorithms has been developed in this *** can result when the selection of features is subject to metaheuristics,which can lead to a wide range of ***,we adopted hybrid optimization in our method of optimizing,which allowed us to better balance exploration and harvesting chores more *** propose utilizing the binary DTO-GW search approach we previously devised for selecting the optimal subset of *** the proposed method,the number of features selected is minimized,while classification accuracy is *** test the proposed method’s performance against eleven other state-of-theart approaches,eight datasets from the UCI repository were used,such as binary grey wolf search(bGWO),binary hybrid grey wolf,and particle swarm optimization(bGWO-PSO),bPSO,binary stochastic fractal search(bSFS),binary whale optimization algorithm(bWOA),binary modified grey wolf optimization(bMGWO),binary multiverse optimization(bMVO),binary bowerbird optimization(bSBO),binary hysteresis optimization(bHy),and binary hysteresis optimization(bHWO).The suggested method is superior 4532 CMC,2023,vol.74,no.2 and successful in handling the problem of feature selection,according to the results of the experiments.

关键词： Metaheuristics dipper throated optimization grey wolf optimization binary optimizer feature selection

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Single-ended Distributed Vibration Sensing Using Forward Polarization Detection of CW Light Based on (1+8) Multicore Fiber

Single-ended Distributed Vibration Sensing Using Forward Pol...

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2023 Conference on Lasers and Electro-Optics, CLEO 2023

作者： Du, Haoze He, Huan Zhao, Can Zhang, Mingming Wu, Hao Tang, Ming National Engineering Laboratory for Next Generation Internet Access System School of Optical and Electronic Information Huazhong University of Science and Technology Wuhan430074 China

A single-ended distributed vibration sensing system based on 3km 1+8 MCF is proposed and experimentally demonstrated. The vibration is located by calculating the time delay between the two cores by cross-correlation a...

ISBN: (纸本)9781957171258

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Metamaterial terahertz device with temperature regulation function that can achieve perfect absorption and complete reflection conversion of ultrawideband

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Communications in Theoretical Physics 2024年第7期76卷 123-133页

作者： Hao Sun Zao Yi Can Ma Shubo Cheng Bin Tang Qingdong Zeng Sohail Ahmad School of Mathematics and Science Joint Laboratory for Extreme Conditions Matter PropertiesState Key Laboratory of Environment-Friendly Energy MaterialsTianfu Institute of Research and InnovationSouthwest University of Science and TechnologyMianyang 621010China Department of Oncology Sichuan Science City HospitalMianyangSichuan Province621000China School of Chemistry and Chemical Engineering Jishou UniversityJishou 416000China School of Physics and Optoelectronic Engineering Yangtze UniversityJingzhouHubei 434023China School of Microelectronics and Control Engineering Changzhou UniversityChangzhou 213164China School of Physics and Electronic Information Engineering Hubei Engineering UniversityXiaogan 432000China Institute of Physics Bahauddin Zakariya UniversityMultan 66000Pakistan

The field of terahertz devices is important in terahertz ***,most of the current devices have limited functionality and poor *** improve device performance and achieve multifunctionality,we designed a terahertz device based on a combination of VO_(2)and *** device can be tuned using the phase-transition characteristics of VO_(2),which is included in the triple-layer structure of the device,along with SiO_(2)and *** terahertz device exhibits various advantageous features,including broadband coverage,high absorption capability,dynamic tunability,simple structural design,polarization insensitivity,and incidentangle *** simulation results showed that by controlling the temperature,the terahertz device achieved a thermal modulation range of spectral absorption from 0 to *** 313 K,the device exhibited complete reflection of terahertz *** the temperature increased,the absorption rate also *** the temperature reached 353 K,the device absorption rate exceeded 97.7%in the range of 5-8.55 *** study used the effective medium theory to elucidate the correlation between conductivity and temperature during the phase transition of VO_(2).Simultaneously,the variation in device performance was further elucidated by analyzing and depicting the intensity distribution of the electric field on the device surface at different ***,the impact of various structural parameters on device performance was examined,offering valuable insights and suggestions for selecting suitable parameter values in real-world *** characteristics render the device highly promising for applications in stealth technology,energy harvesting,modulation,and other related fields,thus showcasing its significant potential.

关键词： terahertz perfect absorption complete reflection temperature regulation ultrawideband smart device

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A DVS signal recognition method with high generalization based on FrFT 28

A DVS signal recognition method with high generalization bas...

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28th International Conference on Optical Fiber Sensors, OFS 2023

作者： Ge, Zhao Zhao, Can Wu, Hao Tang, Ming National Engineering Laboratory for Next Generation Internet Access System School of Optics and Electronic Information Huazhong University of Science and Technology Wuhan430074 China

We propose a DVS signal recognition method based on FrFT, which enhances the learning effectiveness of neural network by exploring more feature dimensions of the signal, achieving high recognition accuracy with good g... 详细信息

ISBN: (纸本)9781957171302

关键词： Signal processing

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Adaptive Broad Learning Network for LPI Radar Waveform Recognition 9

Adaptive Broad Learning Network for LPI Radar Waveform Recog...

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9th International Conference on Intelligent Computing and Signal Processing, ICSP 2024

作者： Wang, Dong Cui, Tianshu Li, Ruike Huang, Yonghui Zhu, Yan National Space Science Center Chinese Academy of Sciences Beijing China University of Chinese Academy of Sciences Beijing China China Academy of Aerospace Science and Innovation Beijing China Key Laboratory of Electronics and Information Technology for Space Systems Beijing China

ISBN: (纸本)9798350376548

Low probability of intercept (LPI) radar waveform recognition is a crucial branch in the field of electronic reconnaissance, serving as a vital method for acquiring information from non-cooperative radar sources. In recent times, deep learning models have demonstrated significant breakthroughs in the field of LPI radar waveform recognition (LWR). While these models significantly enhance recognition accuracy, the abundance of parameters and computations in the model renders training time-consuming, and the model structure lacks flexibility and scalability. To address these challenges, we propose an adaptive broad learning network (ABLN) for LWR. The ABLN transforms the time-frequency images (TFIs) of radar signals into feature nodes and enhancement nodes, with waveform types represented as output nodes. We further introduced a strategy for adaptively adjusting network parameters to reduce computational overheads, facilitating expedited optimization of the model structure. The simulation results show that ABLN has superior performance compared with other LWR methods. © 2024 IEEE.

关键词： Image enhancement

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Experimental Demonstration of Self-homodyne Coherent Transmission of TPS-4096-QAM over a 22.5 km MCF with a Spectral Efficiency of 19.15 bits/s/Hz/core 21

Experimental Demonstration of Self-homodyne Coherent Transmi...

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21st International Conference on Optical Communications and Networks, ICOCN 2023

作者： Wu, Tianze Tian, Feng Wang, Nan Gu, Yu Zhou, Jianwei Zhang, Qi Wang, Fu Gao, Ran Liu, Bo Xin, Xiangjun Beijing University of Posts and Telecommunications State Key Laboratory of Information Photonics and Optical Communications Beijing Key Laboratory of Space-ground Interconnection and Convergence School of Electronic Engineering Beijing China Beijing Institute of Technology School of Information and Electronics Beijing China Nanjing University of Information Science and Technology School of Physics and Optoelectronic Engineering Nanjing China

We experimentally demonstrate the self-homodyne coherent transmission of truncated probabilistic shaping (TPS) 4096-level quadrature amplitude modulation (QAM) over a 22.5 km 7-core fiber, without carrier recovery. Th... 详细信息

ISBN: (纸本)9798350343502

关键词： Optical fiber communication

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A Novel Three-Layer GRU Equalizer for High-Speed PAM-4 Transmission Beyond 300Gbps

A Novel Three-Layer GRU Equalizer for High-Speed PAM-4 Trans...

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Asia Communications and Photonics Conference and Exhibition (ACP)

作者： Yu Sun Junde Lu Jun Qin Junxiong Tan Qian Wang Jie Shi Lanling Chen Yueqin Li Jian Sun Key Laboratory of Information and Communication Systems Ministry of Information Industry Beijing Information Science and Technology University Beijing China Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument Beijing Information Science and Technology University Beijing China

ISBN: (数字)9798350379266

ISBN: (纸本)9798350379273

A novel three-layer gated recurrent unit neural network (TL-GRU) equalizer for high-speed intensity modulation direct-detection (IM/DD) PAM-4 systems is proposed. Based on this novel equalization scheme, the BER performance of the 200 Gbaud (400 Gbps) PAM-4 can be decreased into hard-decision forward error correction (HD-FEC) threshold 3.8× 10 −3 , which is much better than least mean squares (LMS), polynomial nonlinear equalization (PNE) and gated recurrent unit (GRU) equalizers. The TL-GRU highlights its potential as a promising signal equalization solution for 1.6T and 3.2T short-reach optical interconnect systems.

关键词： Optical interconnections Equalizers Neural networks Logic gates Nonlinear optical devices Polynomials Optical network units Intensity modulation Photonics High-speed optical techniques

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HighlightRemover: Spatially Valid Pixel Learning for Image Specular Highlight Removal 24

HighlightRemover: Spatially Valid Pixel Learning for Image S...

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32nd ACM International Conference on Multimedia, MM 2024

作者： Zhang, Ling Ma, Yidong Jiang, Zhi He, Weilei Bao, Zhongyun Fu, Gang Xu, Wenju Xiao, Chunxia School of Computer Science and Technology Hubei Key Laboratory of Intelligent Information Processing and Realtime Industrial Systems Wuhan University of Science and Technology Wuhan China School of Computer Science Wuhan University Wuhan China Department of Computing Hong Kong Polytechnic University Hong Kong Amazon Palo Alto United States

ISBN: (纸本)9798400706868

Recently, learning-based methods have made significant progress for image specular highlight removal. However, many of these approaches treat all the image pixels uniformly, overlooking the negative impact of invalid pixels on feature reconstruction. This oversight often leads to undesirable outcomes, such as color distortion or residual highlights. In this paper, we propose a novel image specular highlight removal network called HighlightRNet, which utilizes valid pixels as references to reconstruct the highlight-free image. To achieve this, we introduce a context-aware fusion block (CFBlock) that aggregates information in four directions, effectively capturing global contextual information. Additionally, we introduce a location-aware feature transformation module (LFTModule) to adaptively learn the valid pixels for feature reconstruction, thereby avoiding information errors caused by invalid pixels. With these modules, our method can produce high-quality highlight-free results without color distortion and highlight residual. Furthermore, we develop a multiple light image-capturing system to construct a large-scale highlight dataset called NSH, which exhibits minimal misalignment in image pairs and minimal brightness variation in non-highlight regions. Experimental results on various datasets demonstrate the superiority of our method over state-of-the-art methods, both qualitatively and quantitatively. © 2024 ACM.

关键词： Pixels

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