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2021 International Conference on Computer, Internet of Things and control Engineering, CITCE 2021

作者： Yu, Yang Zhang, Honggang Gao, Junke Shi, Pengjie Luoyang Institute of Electro-Optical Equipment AVIC Science and Technology on Electro-Optic Control Laboratory Luoyang China Luoyang Institute of Electro-Optical Equipment AVIC Luoyang China

ISBN: (纸本)9781665421843

In order to improve the stability accuracy of the photoelectric stabilized platform, this paper uses a coarse-precision combined control based on a fast mirror to achieve the secondary stability of the photoelectric stabilized platform. This method feeds back the residual error of gyro compass to the fast reflector, and adjusts and compensates it through the optical path, and the fast reflector has a higher working bandwidth and can greatly attenuate the disturbance. In this paper, the working principle of the fast reflector is introduced first, and then the second-level stability experiment is carried out by combining the fast reflector with the actual two-axis two-frame photoelectric stabilized platform mechanism. The experimental results show that under the action of a sinusoidal disturbance of 5Hz and 0. 12°, the stability accuracy of the platform at the first stage of stabilization is 11.8 μrad. After the second-stage stabilization of the fast mirror, the stability accuracy of the platform reaches 5.6 μrad, and the performance is improved by 52.5%. The results show that this method can effectively improve the stability accuracy and performance of the platform. © 2021 IEEE.

关键词： Photoelectricity

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Parameter Dynamic Selection Method of Multi-UAV Cooperative Search Based on Expert System

Parameter Dynamic Selection Method of Multi-UAV Cooperative ...

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International Conference on Guidance, Navigation and control, ICGNC 2022

作者： Liu, Zhenchang Hao, Mingrui Wei, Donghui Liu, Yuting Zhao, Hongyin Science and Technology on Complex System Control and Intelligent Agent Cooperation Laboratory Beijing100074 China Beijing Electro-Mechanical Engineering Institute Beijing100074 China

ISBN: (纸本)9789811966125

The cooperative search strategy is designed with the distributed model predictive method in this paper. For the rationality of decision-making of UAV swarm in different stages of the cooperative search, a dynamic parameter selection method based on the expert system is proposed. The weight of the objective function is adjusted online through the expert system so that the result of the search decision is more in line with the task requirements. Besides, a jump grid method is proposed for grid selection in cooperative search so that the UAV can select non-adjacent grids as the search point for the next time. The UAV's search frequency and trajectory maneuverability can be changed by adjusting the number of jump grids through the expert system. The simulation shows that the UAV with the expert system can dynamically adjust the search interval and search requirements, making the UAV swarm able to quickly discover targets, explore unknown areas, ensure collision avoidance, and meet the boundary constraints. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Unmanned aerial vehicles (UAV)

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Target Combat Intention Recognition Based on Improved Fisher Information Matrix

Target Combat Intention Recognition Based on Improved Fisher...

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2023 International Conference on Cyber-Physical Social Intelligence, ICCSI 2023

作者： Gao, Ruizhou Ma, Yunhong Zhang, Yimin Li, Xinyi Aviation Industry Cooperation of China Science and Technology on Electro-optic Control Laboratory Luoyang China Northwestern Polytechnical University School of Electronics and Information Xi'an China

ISBN: (纸本)9798350312492

Recognizing the opponent's intention is an important part in situational assessment and make the operation decision. Based on the pattern recognition technology of artificial intelligence, a combat intention recognition algorithm according to the value of Fisher information matrix is proposed. The target's combat intention knowledge rule base is constructed and the relative Fisher information matrix is designed to evaluate the target's current state information. The target combat intention recognition problem is transformed into an optimization problem according to the Fisher information matrix. The contribution index is defined to eliminate redundant information during the discrimination process, which improves the accuracy and efficiency of the target combat intention recognition. The proposed algorithm is used on multi-target combat intention recognition and the simulation results verified that the proposed algorithm is effective. © 2023 IEEE.

关键词： Fisher information matrix

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Parallelization of multi-trajectory calculation based on Runge-Kutta method 18

Parallelization of multi-trajectory calculation based on Run...

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18th International Conference on Computational Intelligence and Security, CIS 2022

作者： Zhou, Lin Su, Zhaobing Zhuang, Yongshi Liu, Yang Fan, Lei Science and Technology on Electro-optic Control Laboratory Luoyang471009 China School of Computer Science and Technology Xidian University Xi'an710071 China

ISBN: (纸本)9798350346275

Uncontrolled exterior ballistic calculation is a typical computing intensive problem, which plays vital roles in aircraft design and trajectory planning. Solving this problem usually involves a large amount of calculation, which is time-consuming. To accelerate the multiple trajectory calculation, we design a multi-trajectory calculation architecture based on the fourth-order Runge-Katta method using multithreading parallel computing technology. The multi-trajectory calculation tasks will be allocated to different threads through tasks division. The influences of key factors of multi-trajectory calculation were analyzed in experiments. Simulation results show that the multi-trajectory parallel acceleration architecture can effectively reduce the calculation time and improve the calculation efficiency for the complex differential equations. © 2022 IEEE.

关键词： Runge Kutta methods

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Parity‑time symmetry enabled ultra‑efficient nonlinear optical signal processing

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eLight 2024年第1期4卷 238-250页

作者： Chanju Kim Xinda Lu Deming Kong Nuo Chen Yuntian Chen Leif Katsuo Oxenlowe Kresten Yvind Xinliang Zhang Lan Yang Minhao Pu Jing Xu School of Optical and Electronic Information Huazhong University of Science and TechnologyLuoyu Road 1037#Wuhan 430074China DTU Electro Department of Electrical and Photonics EngineeringTechnical University of Denmarkosteds Plads 343Kongens Lyngby 2800Denmark Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyLuoyu Road 1037#Wuhan 430074China Optics Valley Laboratory Hubei 430074China Department of Electrical and Systems Engineering Washington UniversitySt.LouisMO 63130USA.

Nonlinear optical signal processing(NOSP)has the potential to significantly improve the throughput,flexibility,and cost-efficiency of optical communication networks by exploiting the intrinsically ultrafast optical nonlinear wave *** can support digital signal processing speeds of up to terabits per second,far exceeding the line rate of the electronic *** NOSP,high-intensity light fields are used to generate nonlinear optical responses,which can be used to process optical *** efforts have been devoted to developing new materials and structures for ***,one of the challenges in implementing NOSP is the requirement of high-intensity light fields,which is difficult to generate and *** has been a major roadblock to realize practical NOSP systems for high-speed,high-capacity optical ***,we propose using a parity-time(PT)symmetric microresonator system to significantly enhance the light intensity and support high-speed operation by relieving the bandwidth-efficiency limit imposed on conventional single resonator *** design concept is the coexistence of a PT symmetry broken regime for a narrow-linewidth pump wave and near-exceptional point operation for broadband signal and idler *** enables us to achieve a new NOSP system with two orders of magnitude improvement in efficiency compared to a single *** a highly nonlinear AlGaAs-on-Insulator platform,we demonstrate an NOSP at a data rate approaching 40 gigabits per second with a record low pump power of one *** findings pave the way for the development of fully chip-scale NOSP devices with pump light sources integrated together,potentially leading to a wide range of applications in optical communication networks and classical or quantum *** combination of PT symmetry and NOSP may also open up opportunities for amplification,detection,and sensing,where response speed and efficiency are equally important.

关键词： pump resonator signal

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Towards task parallelizing in scientific workflow systems 18

Towards task parallelizing in scientific workflow systems

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18th International Conference on Computational Intelligence and Security, CIS 2022

作者： Liu, Yang Su, Zhaobing Zhuang, Yongshi Fan, Lei Zhou, Lin School of Computer Science and Technology Xidian University Xi'an710071 China Science and Technology on Electro-optic Control Laboratory Luoyang471009 China

ISBN: (纸本)9798350346275

Task scheduling is a hot issue in computing fields, aiming at improving time efficiency of algorithms or resource utilization of computing platforms. This article mainly deals with the data processing scheduling problems in scientific workflow systems. In this paper, data processes in the scientific workflow will be analyzed based on the process activity graph. According to the dependencies between the processes, some processes will be merged before scheduling. During the execution of the scientific workflow tasks, the processes that can be performed in parallel will be recognized automatically by the proposed method, which will be further executed by the developed scheduling approach via virtual machines with the goal of minimizing the workflow run time. Experiments are conducted to evaluate the proposed methods. The results show the effectiveness and positiveness of the scheduling strategy. © 2022 IEEE.

关键词： Data handling

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Hot Carrier Degradation Accompanied by Recovery in InSnZnO Thin-Film Transistors

IEEE Electron Device Letters

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IEEE electron Device Letters 2023年第7期44卷 1124-1127页

作者： Zhang, Meng Jiang, Zhendong Deng, Sunbin Chen, Zhiying Ma, Xiaotong Tien, Ching-Ho Chen, Lung-Chien Wong, Man Kwok, Hoi-Sing Shenzhen University College of Electronics and Information Engineering Shenzhen518060 China The Hong Kong University of Science and Technology State Key Laboratory of Advanced Displays and Optoelectronics Technologies Hong Kong Hong Kong National Taipei University of Technology Department of Electro-Optical Engineering Taipei10608 Taiwan

In this letter, the reliability of InSnZnO thin-film transistors (TFTs) under hot carrier (HC) stress is systematically studied. HC degradation accompanied by recovery is observed for the first time in InSnZnO TFTs. The acceptor-like trap state generation and electron trapping into gate insulator (GI) jointly degenerate the device, and electron detrapping from GI and hole injection into GI jointly recover the device meanwhile. The self-weakening of HC effect with stress time and the vertical electric field enhancement jointly trigger the domination of the recovery effect. © 1980-2012 IEEE.

关键词： Iron

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A High-Speed Automatic Polarization controller based on the Silicon Photonics Platform

A High-Speed Automatic Polarization Controller based on the ...

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2024 Conference on Lasers and electro-Optics, CLEO 2024

作者： Wang, Weiqin Zhou, Ziwen Zeng, Yifan Peng, Wenyi Wu, Hao Ding, Yunhong Yan, Siqi Tang, Ming School of Optical and Electronic Information Huazhong University of Science and Technology Wuhan430074 China Optics Valley Laboratory Wuhan430074 China School of Future Technology Wuhan430074 China Department of Electro Denmark Technical University Kongens Lyngby2800 Denmark

We proposed an automatic polarization controller based on a novel thermal phase tuning structure on the silicon platform, with a polarization control speed of up to 20 krad/s, which is the fastest reported silicon-bas... 详细信息

ISBN: (纸本)9781957171395

关键词： Silicon photonics

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Realizing a flexible and wavelength-tunable random laser inspired by cicada wings

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Journal of Materials Chemistry C 2024年第16期12卷 5701-5707页

作者： Chou, Chia-Jung Abe, Ayano Tang, Jian-Fu Lin, Tzu-Chau Kuo, Chi-Ching Lin, Ja-Hon Adachi, Chihaya Department of Electro-Optical Engineering Advanced Nanophotonics Technology Laboratory National Taipei University of Technology Taipei10608 Taiwan Kyushu University 744 Motooka Nishi-ku Fukuoka819-0395 Japan Department of Electronic Engineering Lunghwa University of Science and Technology Taoyuan333 Taiwan Department of Chemistry Photonic Materials Research Laboratory NCU-Covestro Research Center National Central University Taoyuan320 Taiwan Institute of Organic and Polymeric Materials National Taipei University of Technology Taipei106 Taiwan

A bio-tissue-inspired random laser (RL) has been successfully demonstrated using a dye-covered silk fibroin replica film (DC-SFRF) fabricated through soft lithography of a cicada's wing. Thanks to the increased light scattering between the nanopapillate structures of the DC-SFRF, the RL exhibits a lower lasing threshold, higher slope efficiency, and broader angular emission compared to those of the dye-covered silk fibroin film (DC-SFF). The low spatial coherence NIR RL can also serve as a suitable light source in bio-diagnosis to generate a low speckle noise image with a contrast of approximately 0.040. By employing flexible PET as a substrate, we have demonstrated the flexibility of the near-infrared random laser (NIR RL) through the application of mechanical stress to alter the distribution of nanopapillate structures on the surface of the replica film. As the curvature increases, the DC-SFRF RL exhibits a blue shift of 13.3 nm in the emission spectrum and a further reduction in the speckle contrast to 0.031. © 2024 The Royal Society of Chemistry

关键词： Emission spectroscopy

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Generalized Inverse Source: Matter, Information and Energy

Generalized Inverse Source: Matter, Information and Energy

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Photonics for Energy 2021

作者： Hua, Liu Science and Technology on Electro-optic Control Laboratory China Luoyang Institute of Electro-optical Equipment of AVIC China Beijing Institute of Technology Beijing China

ISBN: (数字)9781510646360

ISBN: (纸本)9781510646353

In many fields of physics, there is a common inverse source problem, that is, there is a measured optical or electrical signal intensity distribution or scattering differential cross section to retrieve the lost phase information, so as to reconstruct the full wave function. The phase recovery of imaging system is one of these typical problems. The model and experiment based on theory play a role in the development of system optics. And then, we have obtained effective solutions. © 2021 SPIE.

关键词： Inverse problems

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