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International Conference on Control Engineering and Information System, ICCEIS 2014

作者： Zhao, Z.Q. Zhang, X.Z. Science and Technology on Composite Land Systems Simulation Laboratory Beijing China College of Mechaeronics Engineering and Automation National University of Defense Technology Changsha Hunan China Science and Technology on Composite Land Systems Simulation Laboratory Beijing China

ISBN: (纸本)9781138026858

Under the background of the system of systems (Sos) confrontation of army weapon, owing to being enclosed in the sealed fighting subsystem, and the effectiveness matrix is degrading, so the effectiveness equivalent on the varieties of the weapon in the system of systems cannot be conducted for many years as a difficult problem in the field of assessment on the effectiveness of weapon systems. The principle of multiple effectiveness equivalent aiming at expanding the traditional effectiveness equivalent theory was presented, filling in gap existing in the original theory, and satisfactorily realized the effectiveness equivalent of varieties of main weapon systems in army’s weapon system of systems, which is an important breakthrough and innovation in the study on assessment of effectiveness of weapon systems, enjoying broad utilization prospect. © 2015 Taylor & Francis Group, London.

关键词： System of systems

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Fast compressed sensing spectral measurement with adaptive gradient multiscale resolution

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Chinese Physics B 2024年第2期33卷 298-304页

作者：蓝若明刘雪峰李天平白成杰 School of Physics and Electronics Shandong Normal UniversityJinan 250014China Key Laboratory of Electronics and Information Technology for Space Systems National Space Science CenterChinese Academy of SciencesBeijing 100190China

We propose a fast,adaptive multiscale resolution spectral measurement method based on compressed *** method can apply variable measurement resolution over the entire spectral range to reduce the measurement time by over 75%compared to a global high-resolution *** the characteristics of the human retina system,the resolution distribution follows the principle of gradually *** system allows the spectral peaks of interest to be captured dynamically or to be specified a priori by a *** system was tested by measuring single and dual spectral peaks,and the results of spectral peaks are consistent with those of global high-resolution measurements.

关键词： spectrometer compressed sensing adaptive gradient multiscale resolution fast measurement

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Sensitivity study of the SiGe heterojunction bipolar transistor single event effect based on pulsed laser and technology computer-aided design simulation

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Chinese Physics B 2023年第6期32卷 420-428页

作者：冯亚辉郭红霞潘霄宇张晋新钟向丽张鸿琚安安刘晔欧阳晓平 School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105China State Key Laboratory of Experimental Simulation and Effects of Strong Pulse Radiation Northwest Institute of Nuclear TechnologyXi'an 710024China School of Space Science and Technology Xidian UniversityXi'an 710071China

The single event effect of a silicon–germanium heterojunction bipolar transistor(SiGe HBT) was thoroughly investigated. By considering the worst bias condition, the sensitive area of the proposed device was scanned with a pulsed *** variation of the collector bias and pulsed laser incident energy, the single event transient of the SiGe HBT was ***, the single event transient produced by laser irradiation at a wavelength of 532 nm was more pronounced than at a wavelength of 1064 nm. Finally, the impact of the equivalent linear energy transfer of the 1064 nm pulsed laser on the single event transient was qualitatively examined by performing technology computer-aided design simulations, and a good consistency between the experimental data and the simulated outcomes was attained.

关键词： silicon-germanium heterojunction bipolar transistor pulsed laser single event effect equivalent linear energy transfer(LET)value

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A 420nm Blue Diode Laser for the Potential Rubidium Optical Frequency Standard

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Chinese Physics Letters 2017年第7期34卷 118-121页

作者：张盛楠张晓刚涂建辉蒋招杰商浩森祝传文杨炜崔敬忠陈景标 State Key Laboratory of Advanced Optical Communication Systems and Networks and Institute of Quantum Electronics School of Electronics Engineering and Computer Science Peking University National Key Laboratory of Science and Technology on Vacuum Technology & Physics Lanzhou Institute of PhysicsChina Academy of Space Technology

We report a 42Ohm external cavity diode laser with an interference filter （IF） of 0.5am narrow-bandwidth and 79% high transmission, which is first used for Rb optical frequency standard. The IF and the cat-eye reflector are used for selecting wavelength and light feedback, respectively. The measured laser linewidth is 24 kHz when the diode laser is free running. Using this narrow-linewidth IF blue diode laser, we realize a compact Rb optical frequency standard without a complicated PDH system. The preliminary stability of the Rb optical frequency standard is 2 × 10^-13 at I s and decreases to 1.9 ×10^-14 at 1000s. The narrow-linewidth characteristic makes the IF blue diode laser a well suited candidate for the compact Rb optical frequency standard.

关键词： A 420nm Blue Diode Laser for the Potential Rubidium Optical Frequency Standard Rb kHz

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System of systems complexity and decision making

System of systems complexity and decision making

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2012 7th International Conference on System of systems Engineering, SoSE 2012

作者： Zhang, Yingchao Beijing Institute of System Engineering Science and Technology on Complex Systems Simulation Laboratory Beijing China

ISBN: (纸本)9781467329750

Complexity in System of systems (SoS) is a key factor in SoS decision making. This paper analyzes the main characteristics of SoS, especially its complexity in terms of monolithic emergence, component systems adaption and uncertainty in SoS evolution. It further discusses the effects of SoS complexity on SoS decision making. In light of SoS complexity, the paper figures out the major problems that need to be addressed in four areas, namely SoS adaption, abnormity analysis in SoS evolution, exploratory analysis of SoS capability and SoS simulation. In conclusion the paper proposes a preliminary SoS decision making model based on the analysis of SoS adaption. © 2012 IEEE.

关键词： System of systems

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Research on a Highly Sensitive SAW Strain Sensor Based on a Beam-plate Structure

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IEEE Transactions on Instrumentation and Measurement 2025年 74卷

作者： Zheng, Yinrong Liang, Xiaorui Dong, Helei Zhang, Juan Luo, Zhonghai Lu, Meimei Qin, Yongqiang Tan, Qiulin North University of China Key Laboratory of Micro/nano Devices and Systems Ministry of Education Tai Yuan 030051 China Taiyuan Institute of Technology Department of Mechanical Engineering Taiyuan 030008 China Science and Technology on Space Physics Technology Laboratory Beijing 100076 China

Real-time monitoring of component deformation under conditions of elevated temperature and high rotational speeds is essential for maintaining the structural integrity and operational safety of machinery. Conventional Surface Acoustic Wave (SAW) strain sensors exhibit limitations, including insufficient operating temperature capabilities and reduced measurement accuracy, which hinder their applicability under extreme conditions. This study developed a highly sensitive SAW strain sensor based on Langasite (LGS) and a beam-plate structure. The fabrication process employed a double-sided lithography wet etching technique to produce a beam-plate structure with a smooth surface, achieving a surface roughness of 0.945 nm — an 88.9% reduction from the roughness of 8.53 nm typically obtained using single-sided lithography. Interdigital electrode patterns were etched onto both the beam-plate and conventional LGS substrates using Micro-Electro-Mechanical systems (MEMS) technology. The sensor was evaluated on a custom-designed high-temperature strain test platform. The results demonstrated that the beam-plate type SAW strain sensor operated stably across a temperature range of 25 °C-850 °C and a strain range of 0-1600 μƐ. The sensor exhibited a sensitivity of 550 Hz/μƐ at room temperature, which was approximately 3.14 times higher than that of conventional SAW sensors. Under the concurrent effects of temperature and strain at elevated temperatures, a temperature-strain decoupling algorithm was developed, yielding a maximum error between the decoupled and measured values ranging from -4.4% to +4.3%. The beam-plate type SAW strain sensor is characterized by its high sensitivity, excellent temperature resistance, rapid response time, and robust anti-interference properties. Thus, the proposed sensor is well-suited for applications in advanced fields such as aerospace, highend equipment, and other high-precision domains. © 1963-2012 IEEE.

关键词： Beam-plate structure double-sided lithography high sensitivity high temperature resistance wide strain

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Architecture transformation research on joint border defense systems-of-systems 2021

Architecture transformation research on joint border defense...

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2021 5th International Conference on Management Engineering, Software Engineering and Service sciences, ICMSS 2021

作者： Zhang, Mengmeng Yi, Shuanghui Lin, Menglong Chen, Honghui Science and Technology on Information Systems Engineering Laboratory China National Key Laboratory for Complex System Simulation China

ISBN: (纸本)9781450389709

Currently, with the deepening of development and open of China's border, issues of border joint defense become increasingly arduous. Traditional means of cooperation and coordination are far from being able to align requirements;information systems of different joint defense units are difficult to interconnect and interoperate;the previous results of joint defense informatization are difficult to inherit. The main reason is the lack of border joint defense information construction with a top-level design approach. Via the lens of top-level design, this paper establishes a multi-viewpoint architecture framework and transformation process, develops the as-is and to-be joint defense architecture, and finally analyzes transformation principles from the as-is architecture to to-be architecture. This paper mainly explores the architecture transformation mechanisms under the border joint defense scenario. © 2021 ACM.

关键词： Architecture

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An analysis method for contribution degree of C4ISR system based on operational effectiveness

An analysis method for contribution degree of C4ISR system b...

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IASTED International Conference on Modelling and simulation, MS 2012

作者： Yu, Qin-Zhang Zhang, Ying-Chao Hu, Run-Tao Shen, Zhi-Ming Zhang, Jing Beijing Institute of System Engineering Science and Technology on Complex Systems Simulation Laboratory Beijing China

ISBN: (纸本)9780889869264

C4ISR system is the multiplicator of System of Armament systems (SoAS). An analysis method for Contribution Degree of C4ISR system is proposed in the paper. Firstly, Overall-Effect based evaluation method for operational effectiveness of SoAS is introduced. Secondly, Contribution Degree of C4ISR system is defined and experiment flow based on exploratory simulation is designed. On this basis, an analysis method for Contribution Degree of C4ISR system is put forward. Finally, a simulation experiment is executed to prove the effectiveness of the method.

关键词： C4ISR system Contribution Degree Analysis Method Operational Effectiveness Multiplying circuits simulation test evaluation method armament WWOX gene

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Influence of the road grade on the optimization of fuzzy-based hybrid electric vehicle control strategy

Influence of the road grade on the optimization of fuzzy-bas...

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Powertrain and Fluid systems Conference and Exhibition

作者： Montazeri-Gh, Morteza Asadi, Mohammad Systems Simulation and Control Laboratory Mechanical Engineering Department Iran University of Science and Technology Iran

This paper describes a methodological approach for the investigation of the influence of the road grade on the optimization of the HEV control strategy. In this study, the genetic-fuzzy control strategy for the HEV power flow management is employed. The genetic-fuzzy control strategy is a fuzzy control strategy which is tuned offline using the genetic algorithm (GA). In this approach, the optimal selection of the fuzzy control parameters is formulated as a constrained optimization problem. In addition, the objective is defined to minimize the vehicle fuel consumption and emissions while satisfying the driving performance *** tuning process is performed for TEH-CAR driving cycle taking the grade into account. TEH-CAR is a driving cycle that is developed based on the experimental data collected from the real traffic conditions. The simulation results show the effectiveness of the approach and reveal that the road grade has a considerable influence on the HEV fuel use and emissions. Copyright © 2006 SAE International.

关键词： Hybrid vehicles

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Optimization of radar reconnaissance constellation based on fuzzy relative entropy 6

Optimization of radar reconnaissance constellation based on ...

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6th International Conference on Advanced Electronic Materials, Computers, and Software Engineering, AEMCSE 2023

作者： Liu, Yali Xiong, Wei Han, Chi Science and Technology on Complex Electronic System Simulation Laboratory Space Engineering University Beijing101416 China

ISBN: (纸本)9781510668249

The optimization of radar reconnaissance constellation is of great significance for reconnaissance timeliness. In order to solve the problems of insufficient selection pressure and poor diversity of the evolutionary algorithm based on Pareto domination in solving the many-objective optimization problem of radar reconnaissance constellation, an imporved particle swarm optimization based on fuzzy relative entropy (IFREM_PSO) is proposed. A new inertial weight strategy is proposed to enhance the convergence speed and accuracy of the algorithm, improve the external archive maintenance strategy, and enhance the convergence and diversity of the algorithm. The optimization model of radar imaging reconnaissance constellation oriented to area reconnaissance is constructed. The IFREM_PSO is used to optimize the model, and the multi-objective particle swarm optimization algorithm (MOPSO) is used as the control algorithm. Experiments show that the IFREM_PSO has better results in terms of convergence, diversity and convergence speed, and can effectively solve the problem of radar reconnaissance constellation optimization. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Entropy

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