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3rd International Conference on Materials science and Information technology, MSIT 2013

作者： Liao, Shan Liang Lai, Jia Zhe Company of Postgraduate Management The Academy of Equipment Beijing China Science and Technology on Complex Electronic System Simulation Laboratory The Academy of Equipment Beijing China

ISBN: (纸本)9783037857700

With the rapid development of complex adaptive systems, traditional modeling and simulation methods have been unable to meet the need of accurate modeling of complex adaptive systems. Therefore, we need a way to accurately describe the characteristics of complex adaptive systems modeling and simulation. Multi-Agent modeling and simulation methods focus on the study of the interaction between multiple subjects. It is an effective way to study complex adaptive system. This paper analyzes the multi-agent modeling process, sets up a rumor spreading model of a small social network through multi-agent modeling and simulation methods,. The simulation results verify the correctness and accuracy of the model. © (2013) Trans Tech Publications, Switzerland.

关键词： Adaptive systems

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On design and realization of model registration mechanism based upon cloud computing

On design and realization of model registration mechanism ba...

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20th IASTED International Conference on Applied simulation and Modelling, ASM 2012

作者： Ren, Tingguang Wei, Jicai Jiang, Jiali Tang, Lijian Lv, Shaoqing Beijing Institute of System Engineer Science and Technology on Complex Systems Simulation Laboratory Post Box.9702 19 Beijing 100101 China

ISBN: (纸本)9780889869257

Through analyzing the theoretical basis and approach features of system-of-systems and cloud computing technology, the designing infrastructure and application flow of the meta-synthetic environment for equipment system-of-systems demonstration have been given with a combination of construction and application requirements of equipment system-of-systems centered on information. When designing the meta-synthetic environment for equipment system-of-systems demonstration, we adopted the way of Service Oriented Architecture (SOA), and put forward a model registration mechanism. By establishing the model registration principle, we designed and generated the model registration system, realized the model registration and management of the meta-synthetic environment to solve the quantification and evaluation issue and realized Design on Demand and Service on Demand of evaluation of the equipment system-of-systems demonstration meta-synthetic environment.

关键词： Demonstrations

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system-of-systems planning method based on Markowitz model

System-of-systems planning method based on Markowitz model

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20th IASTED International Conference on Applied simulation and Modelling, ASM 2012

作者： Wei, Jicai Ren, Tingguang Jiang, Jiali Zhao, Wei Cui, Hao Li, Junmei Beijing Institute of System Engineer Science and Technology on Complex Systems Simulation Laboratory Post Box.9702 19 Beijing 100101 China

ISBN: (纸本)9780889869257

In order to resolve the problems resulting from various combinations of equipment selection, numerous uncertainties of future demands and the development process, a planning method based on the Markowitz model is proposed. First a qualitative analysis is performed and models of a combination planning method are produced, then a Markowitz model of the development plan of system-of-systems under uncertainty is built and solved by adopting a searching algorithm based on vector operation. Finally the effectiveness of the method is checked by scouting the development planning examples of the early warning surveillance system.

关键词： system of systems

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Research on Multifaceted Presentation Methods for Product Spectra Based on Mixed Reality 4

Research on Multifaceted Presentation Methods for Product Sp...

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4th International Conference on Computer Vision and Pattern Analysis, ICCPA 2024

作者： Yu, Zhen Cheng, Lei Sun, Jiayuan Li, Yifei Shen, Junjie China Electronics Technology Group Corporation 15th Research Institute Beijing China Science and Technology on Complex System Simulation Laboratory Beijing China

ISBN: (纸本)9781510682528

With the evolution of augmented reality technology itself, its application fields continue to expand. The characteristics of multi-source augmented reality display methods, natural interaction means, and rich content volume provide a new application model inspiration for traditional information systems. As products advance, the analysis and presentation of product spectra have also put forward new requirements for diverse applications. Based on a comprehensive analysis of the display needs of product spectra, this paper proposes a multifaceted presentation framework for product spectra based on mixed reality technology, which can support the comprehensive display of overall situation, local situation, system capabilities, organization capabilities, and single-equipment capabilities. Compared with traditional display methods, it has more significant advantages. © 2024 SPIE.

关键词： Mixed reality

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A matching algorithm based on global viewpoint difference rectification for framework imagery

A matching algorithm based on global viewpoint difference re...

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IEEE International Conference on Communication Problem-Solving, ICCP 2015

作者： Shibing, Zhu Changqing, Li Sheng, Yang Chi, Zhou Department of Information Equipment Academy of Equipment Beijing101416 China Science and Technology on Complex Electronic System Simulation Laboratory Beijing101416 China

ISBN: (纸本)9781467365437

Matching precision is very important and difficult in accurate photography, remote sensing and 3D reconstruction. After analyzing the advantages and shortcomings of current matching algorithms and the epipolar geometry, a new matching algorithm based on global viewpoint difference rectification for framework imagery is devised. Without the aid of orientation parameters, this algorithm contains three parts, the scale rectification for an overall comfortable of the image, the viewport rectification for compensating the bias between the vertical plane of the primary optical axis and the main plane of the scene, and the consistent transformation of two images with different viewports. Following, the details of the implementation of our methods are also given. The validation experiments of the matching precision show that, the new algorithm can improve the precision dramatically, which is better than many other good matching algorithms. © 2015 IEEE.

关键词： Computer vision

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The design and realization of data accessing service in the meta-synthetic integrated environment of stratagem research

The design and realization of data accessing service in the ...

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5th International Conference on Applied Mathematics, simulation, Modelling, ASM'11

作者： Wei, Jicai Bai, Hanbin Zhao, Wei Ren, Tingguang Li, Junmei Beijing Institute of System Engineer Science and Technology on Complex Systems Simulation Laboratory Post Box.9702#19 Beijing 100101 China

ISBN: (纸本)9781618040169

Data accessing service is designed to meet the needs of searching and utilizing various data in the meta-synthetic integrated environment of stratagem research (SR) and meanwhile data fuzzy mining engine is supposed to refine the collected data to make them useful for the stratagem research. Also, for accessing and utilizing database, data accessing API is designed, which provides a uniform interface for all data accessing requests and with mapping function gets all data address and accessing transparent.

关键词： Application programming interfaces (API)

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A Multi-objective optimization model for simulation-based acquisition 7

A Multi-objective optimization model for simulation-based ac...

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7th IEEE International Conference on Progress in Informatics and Computing, PIC 2020

作者： Zhang, Xue Xue, Junjie Zhou, Junhua Shi, Guoqiang Yu, Yan Nanjing University of Science and Technology School of Computer Science and Engineering Nanjing China Beijing Simulation Center Beijing Complex Product Advanced Manufacturing Engineering Research Center Beijing China State Key Laboratory of Intelligent Manufacturing System Technology Beijing Institute of Electronic System Engineering Beijing China Science and Technology on Space System Simulation Laboratory Beijing Simulation Center Beijing China

ISBN: (纸本)9781728170862

Large-scale equipment presents the characteristics of technology-intensive, knowledge-intensive and complex, which brings high investment and high risk to equipment acquisition. This paper analyzes the various components of equipment acquisition to fully apply modeling and simulation technology to each stage of it. On the basis of multi-objective optimization theory, the objective function of the lowest risk and lowest cost of simulation-based acquisition (SBA) is proposed. Then establishing a multi-objective optimization model for simulation-based acquisition according to the corresponding constraints. The nondominated sorting genetic algorithm II (NSGA II) and multi-objective particle swarm optimization (MOPSO) algorithms are used to optimize the model, and the majority voting method is used for integration. The comparison of simulation examples proves that the multi-objective optimization model oriented to SBA designed in this paper can effectively realize the optimization of each objective of SBA under cost constraints. And the feasibility and efficiency of optimization solution are guaranteed. © 2020 IEEE.

关键词： Multiobjective optimization

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MilChat: A Large Language Model and Application for Military Equipment 7

MilChat: A Large Language Model and Application for Military...

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7th International Conference on Machine Learning and Natural Language Processing, MLNLP 2024

作者： Xue, Liu Jie, Liu Peipei, Zhu Tao, Xiang Southwest China Institute of Electronic Technology National Key Laboratory of Complex Aviation System Simulation Chengdu China

ISBN: (纸本)9798350354973

To offer the military personnel a good service of assisting them to get information about enemy's equipment outside Internet, we build a system named MilChat which includes a large language model that has the ability to generate texts and an application which is easy to use. The model of MilChat is fine-tuned by the method of LoRA with military datasets from the basic model, Qwen-7B-Chat which is opensource and has good performance. After fine-tuning, the new model has higher scores than the basic one. Besides, we use the method of Prompt Learning to limit the answers into a standard format. Therefore, it is more accurate and professional than the basic model. This study has also a value of industrial application. © 2024 IEEE.

关键词： Military equipment

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Range migration-based Doppler ambiguous integer estimation for moving targets with azimuth spectrum aliasing 6

Range migration-based Doppler ambiguous integer estimation f...

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6th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2019

作者： Zhang, Ying Xiong, Wei Dong, Xichao Hu, Cheng Liu, Chengxiang Sun, Yang Science and Technology on Complex Electronic System Simulation Laboratory Space Engineering University Beijing China School of Information and Electronics Beijing Institute of Technology Beijing China

ISBN: (纸本)9781728129129

In some case, the azimuth spectrum bandwidth is larger than the pulse repetition frequency (PRF), leading to a whole azimuth spectrum has been folded into multiple subsegments and aliased. Therefore, the traditional Doppler ambiguous integer estimation method cannot be used directly. In this paper, the influence of Doppler ambiguous integer on residual range migrations' slope is analyzed. Based on the slope, the Doppler ambiguous integer estimation method for moving targets with azimuth spectrum aliasing is given. From the simulation results, the Doppler ambiguous integer can be estimated accurately by proposed method. © 2019 IEEE.

关键词： Synthetic aperture radar

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Nonlinear impedance control with trajectory adaptation for collaborative robotic grinding

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science China(Technological sciences) 2023年第7期66卷 1928-1936页

作者： HAN FengTao TAM SikYuen CAO ZhiHong ZHAO XingWei TAO Bo DING Han State Key Laboratory of Intelligent Manufacturing Equipment and Technology School of Mechanical Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Intelligent Manufacturing System Technology for Complex Products Beijing Institute of Electronic System EngineeringBeijing 100854China ROKAE(Beijing)Technology Co. Ltd.Beijing 100193China

Stiffness adjustment is an important feature of human arm *** adaptive variable impedance control can adapt to the robotic stiffness,but may result in a large *** this paper,nonlinear impedance control is proposed for collaborative robotic grinding,where nonlinear force feedback is designed to compensate for the nonlinear stiffness of the ***,the interaction system can be linearization to ensure the system ***,a target trajectory adaptation strategy is studied to ensure the force tracking ***,switching law between trajectory tracking and force tracking is proposed when the robot performs a complex grinding *** stability of the switch control as well as the trajectory adaptation law is *** are conducted in a robotic grinding test rig,where the robot is used to grind a turbine *** results show that the nonlinear impedance control can obtain stable grinding force,and have better grinding quality than the linear impedance control.

关键词： impedance control robotic grinding trajectory adaptation force tracking

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