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Chinese Control and Decision Conference, CCDC

作者： Jingshuai Huang Hongbo Zhang Shang Wu Guojian Tang Weimin Bao National University of Defense Technology College of Aerospace Science and Engineering Changsha China Science and Technology on Complex Aviation Systems Simulation Laboratory Beijing

ISBN: (数字)9781728158556

ISBN: (纸本)9781728158563

In terms of tracking a hypersonic glide target (HGT), a tracking method is proposed based on interacting-multiple-model (IMM). Target tracking mainly contains two missions: system modeling and choosing filtering algorithm. First, a tracking system is established composed of state and measurement equations on basis of ground-based radar measuring. The Singer model is used to represent the unknown aerodynamic acceleration. Then, to enhance model adaptation of the tracking method, three-model interacting filter is constructed with maneuver-frequency adaption based on unscented Kalman filter (UKF). Through tracking a flight trajectory generated by Gauss Pseudospectral Method, the effectiveness of the proposed method is validated and the multiple-model is superior to the single-model.

关键词： Target tracking Radar tracking Electronic mail Kalman filters Adaptation models Mathematical model Aerospace engineering

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Evolutionary Interest Representation Network for Click-Through Rate Prediction

Evolutionary Interest Representation Network for Click-Throu...

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2023 IEEE International Conference on Web Services, ICWS 2023

作者： Zhou, Renjie Jin, Zhenming Wan, Jian Zhang, Jilin Guo, Xingyu Liu, Qiang Hangzhou Dianzi University Key Laboratory of Complex Systems Modeling and Simulation of the Ministry of Education School of Computer Science and Technology Hangzhou China Hangzhou Dianzi University Key Laboratory of Complex Systems Modeling and Simulation of the Ministry of Education Itmo Joint Institute Hangzhou China Zhejiang University of Science and Technology School of Information and Electronic Engineering Hangzhou China Zhejiang Police College Dept. of Computer and Information Technology Hangzhou China

ISBN: (纸本)9798350304855

The rapid development of the Internet has revo-lutionized our lives, providing us with an array of convenient services. However, this revolution has also led to the problem of data overload. Personalized recommendation services have been widely recognized as an effective solution to this problem by both the industrial and academic communities. Accurate prediction of click-through rate (CTR) is a critical task in personalized recommendation systems since it can improve the user's shopping experience, ultimately increasing revenue for the platform. To achieve accurate CTR prediction, it is crucial to capture user interests. While several methods for interest modeling exist, challenges related to user interest evolution and user behavior noise need further attention. This paper proposes a novel CTR prediction model named the Evolutionary Interest Representation Network (EIRN), which learns the evolving interest representation of users from their behaviors, profiles, and environmental attributes. In the model, we introduce an advertisement correlation graph decomposition layer and a noise filter layer to enhance and purify the user behavior representation. An interest extraction layer is designed to capture sequential correlations and common characteristics between user behaviors, representing their interests. Additionally, as user interests evolve over time and their importance changes, an attention-based interest evolution layer is designed to track the evolution of user interests. Our proposed method is validated using four public datasets and an industrial dataset, showing its superiority over existing CTR prediction methods. © 2023 IEEE.

关键词： Forecasting

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Aggregation Encoding: Reducing Network Traffic for Big Data Erasure-Coded Storages

Aggregation Encoding: Reducing Network Traffic for Big Data ...

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International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC

作者： Jing Zhang Shanshan Li Xiangke Liao Xiaodong Liu School of Computer Science and Technology National University of Defence Technology Changsha China Science and Technology on Complex Aviation Systems Simulation Laboratory Beijing China

ISBN: (纸本)9781467392013

Erasure-coded storages provide data reliability for big data archiving and backup with high storage efficiency. However, erasure code generates a large amount of data transmission traffic in both encoding (write) and decoding (repair) which costs substantial bandwidth in the network. Most of the existing work focus on the decoding cost due to the importance of data repair, but unfortunately overlooks the encoding cost. In this paper, we propose Aggregation Encoding for reducing the bandwidth cost of the encoding phase in erasure-coded storages. Aggregation Encoding takes inspiration from network coding to enforce encoding through data transmission, which reduces redundant information transmitting. The extensive analysis and experimental results demonstrate that Aggregation Encoding reduces bandwidth cost by 20% in average.

关键词： Encoding Bandwidth Routing Vegetation Network topology Topology Approximation methods

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Research on Technical Readiness Evaluation Method in Model Development

Research on Technical Readiness Evaluation Method in Model D...

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International Symposium on Computational Intelligence and Design, ISCID

作者： Junyan Zhao Yufei Jia Lichen Shi Xinjun Zhao Lingjie Kong Science and Technology on Complex Land Systems Simulation Laboratory Beijing China

ISBN: (纸本)9781467395885

Current situation of foreign technical readiness development is introduced. On the basis, technical readiness levels corresponding to model product whole-life cycle process in China are given. Evaluation flow of technical readiness is proposed according to features of model project development process in China. Technical readiness evaluation level evaluation standard criteria conditions are refined from three aspects of technology, manufacturing and management. Technical readiness level judgment process is given, thereby guiding technical readiness evaluation in model development process.

关键词： Procurement Manufacturing Standards Prototypes Production Computational modeling Adaptation models

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Research on Module Partition and Solution Evaluation Method Based on the Interface Relationship

Research on Module Partition and Solution Evaluation Method ...

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International Conference on Intelligent Human-Machine systems and Cybernetics, IHMSC

作者： Junyan Zhao Liang Yin Keyun Wang Lichen Shi Science and Technology on Complex Land Systems Simulation Laboratory Beijing China

ISBN: (纸本)9781479986477

Module division is the basis for product modularization. The rationality of the product module division directly affects the function, performance, development time, cost, general degree of module, convenience of maintenance and so on. A module partition method has been proposed based on the interface relationship of Pros and Cons. It parted the module using fuzzy theory, based on the qualitative hierarchy decomposition of the function, considering the interface depending factors of the parts at the same time in this method. And it introduced "information entropy" concept to evaluate the different module partition schemes, then choose the best module partition scheme. Finally, an example validated the method.

关键词： Loading Information entropy Maintenance engineering Weapons Correlation Manuals complexity theory

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Study on Semi-Active Suspension System of Tracked Vehicle Based on Variable Universe Fuzzy Control

Study on Semi-Active Suspension System of Tracked Vehicle Ba...

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2011 IEEE International Conference Mechatronics and Automation(2011 IEEE机电一体化与自动化国际会议)

作者： Lingjie Kong Xinjun Zhao Baili Qi Science and technology on complex land systems simulation laboratory Beijing China

The suspension system with high performances is an important factor ensuring the tracked vehicle mobility and comfortable in different situations. Magneto rheological dampers, which are semi-active suspension equipment that use magneto rheological fluids to produce controllable force, can be used as smart actuators to reduce the vibrations of mechanical systems. An analytical study is performed in this article to examine the effectiveness of this type of actuator in suppressing the vibrations of a tracked vehicle suspension system. Based on the fluid mechanics theory, an amendment dynamic model of magneto rheological damper is derived. Considering the suspension characteristic and uncertainty of a magneto rheological damper, a variable universe fuzzy controller is designed to achieve a control of active variable damping. The results proved that the derived magneto rheological damper dynamic model is correct and indicated that the designed variable universe fuzzy controller could reduce the tracked vehicle vibration, which will further establish the basis of engineering application for a magneto rheological damper on semi-active suspension.

关键词： tracked vehicle semi-active suspension system control strategies variable universe fuzzy control

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Interference-assisted energy harvesting short packet communications with hardware impairments

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International Journal of Intelligent Networks 2024年第1期5卷 231-240页

作者： Chen, Dechuan Li, Jin Hu, Jianwei Zhang, Xingang Zhang, Shuai Wang, Dong College of Physics and Electronic Engineering Nanyang Normal University Nanyang473061 China Ministry of Education Nanjing210003 China National Key Laboratory for Complex Systems Simulation Beijing100101 China College of Computer Science and Technology Nanyang Normal University Nanyang473061 China

Radio frequency energy harvesting offers a promising solution to provide low power Internet of Things (IoT) devices with convenient and perpetual energy supply. In this work, we investigate the reliable performance of an energy-constrained transmitter communicating with a receiver over Nakagami-m channel, where the effects of transceiver hardware impairments and finite blocklength coding are jointly considered. Specifically, the communication link between the transmitter and receiver operates within the coverage of an existing wireless system, with radio frequency signal from the existing system serving as an energy signal for the transmitter while acting as an interference signal for the receiver. By utilizing the finite-blocklength information theory, we first derive average block error rate (BLER) and asymptotic average BLER in closed-form expressions, which enable us to quantify the extent of reliability loss. Then, we analyze effective throughput of the system, and determine the optimal blocklength that maximizes the effective throughput. Computer simulations are employed to validate the accuracy of our analytical findings, demonstrating the presence of an outage threshold solely due to hardware impairments. Furthermore, if transmission rate exceeds the outage threshold defined by the level of hardware impairments, reliable communication within the system under consideration cannot be achieved, regardless of the transmit signal-to-noise ratio (SNR). © 2024 The Authors

关键词： Energy harvesting

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The Application of Two-dimensional Subsection Simpson Integration on Artillery Firing Efficiency simulation Modeling

The Application of Two-dimensional Subsection Simpson Integr...

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第24届中国系统仿真技术及其应用学术年会（CCSSTA24th 2023）

作者： Zhao Zhiqiang Wang Guizhen Science and Technology on Complex Land Systems Simulation Laboratory 32179 Unit

The evaluation model of artillery firing efficiency is widely applied to firepower command&control and large-scale simulation, it is very important for improving precision and speed of calculation to enhance capability of firepower command&control and large-scale simulation. Two-dimensional subsection Simpson integration was introduced to evaluation the artillery firing efficiency model, the analysis of two-dimensional subsection Simpson integration in theory showed that convergence speed of two-dimensional subsection Simpson integration enhance to O(h4). The simulation results indicate that, speed of two-dimensional subsection Simpson integration is higher 20 times than statistics experiment method, precision of two-dimensional subsection Simpson integration is a little higher than the typical numerical integration such as midpoint formula integration and statistical experiment method, but it can promote precision by 10% than approximate computation method.

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Secure short-packet communications using a full-duplex receiver

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International Journal of Intelligent Networks 2023年第1期4卷 349-354页

作者： Chen, Dechuan Li, Jin Hu, Jianwei Zhang, Xingang Zhang, Shuai College of Physics and Electronic Engineering Nanyang Normal University Nanyang473061 China Ministry of Education Nanjing210003 China National Key Laboratory for Complex Systems Simulation Beijing100101 China College of Computer Science and Technology Nanyang Normal University Nanyang473061 China

In this work, we consider the physical layer security in short-packet communications, where a full-duplex (FD) receiver receives information signals from a source while generating artificial noise (AN) to confuse an eavesdropper. Taking into account the finite blocklength coding and the self-interference (SI) in FD mode, we derive new approximation closed-form expression for the secrecy throughput. Moreover, we analyze the asymptotic secrecy throughput in two distinct scenarios, i.e., high signal-to-noise ratio (SNR) regime and infinite blocklength coding, to gain more insights. Our examination illustrates the correctness of our expressions and shows how the critical system variables affect the secrecy throughput. © 2023 The Authors

关键词： Finite difference method

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Research on Key Technologies of Cross-domain Guidance 8

Research on Key Technologies of Cross-domain Guidance

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8th Symposium on Novel Photoelectronic Detection technology and Applications

作者： Guo, Xiaoyun Wu, Chengfeng Fang, Xueli Xu, Cheng Li, Hui Beijing Institute of Mechanical and Electrical Engineering Beijing China Beijing Institute of Mechanical and Electrical Engineering Science and Technology on Complex System Control and Intelligent Agent Cooperative Laboratory Beijing China Beijing Institute of Mechanical and Electrical Engineering Key Laboratory of Complex Aviation Simulation System Beijing China

ISBN: (数字)9781510653122

ISBN: (纸本)9781510653115

Cross-domain synergy and intelligence will become important features of future warfare. Cross-domain guidance is one of the typical forms of cross-domain synergy. It can significantly improve the ability to respond quickly to random targets and time-sensitive targets and enhance the anti-jamming ability in the case of confrontation. This article introduces the concept and winning mechanism of cross-domain guidance, analyzes the research progress of cross-domain guidance at home and abroad, combs the key technologies of cross-domain guidance, summarizes the current challenges and problems in cross-domain guidance research, and proposes development suggestions. © 2022 SPIE

关键词： Optical engineering

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