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Track correlation algorithm based on CNN-LSTM for swarm targets

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Journal of Systems Engineering and Electronics 2024年第2期35卷 417-429页

作者： chen Jinyang WANG Xuhua chen Xian Research Institute for National Defense Engineering Academy of Military SciencesLuoyang 471023China Information Engineering University Zhengzhou 450001China School of Computer Science and Technology Xidian UniversityXi’an 710071China

The rapid development of unmanned aerial vehicle(UAV) swarm, a new type of aerial threat target, has brought great pressure to the air defense early warning system. At present, most of the track correlation algorithms only use part of the target location, speed, and other information for *** this paper, the artificial neural network method is used to establish the corresponding intelligent track correlation model and method according to the characteristics of swarm ***, a route correlation method based on convolutional neural networks (CNN) and long short-term memory (LSTM)Neural network is designed. In this model, the CNN is used to extract the formation characteristics of UAV swarm and the spatial position characteristics of single UAV track in the formation,while the LSTM is used to extract the time characteristics of UAV swarm. Experimental results show that compared with the traditional algorithms, the algorithm based on CNN-LSTM neural network can make full use of multiple feature information of the target, and has better robustness and accuracy for swarm targets.

关键词： track correlation correlation accuracy rate swarm target convolutional neural network(CNN) long short-term memory(LSTM)neural network

Two-stage Planning Method for Energy Router Considering Its Optimal Operation in Distribution Networks

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CSEE Journal of Power and Energy Systems 2024年第2期10卷 605-616页

作者： Meifu chen Mingchao Xia Qifang chen School of Electrical Engineering Beijing Jiaotong UniversityBeijing 100044China

An energy router can effectively optimize the network loss and power quality of distribution networks. The optimal configuration of the energy router is relatively complex because issues dynamically influence each other, such as the location of the energy router, optimal number and capacity of its ports, and building new distribution lines for the ports. Presently, there has been very few research studies on the practical problems for the energy router. In this paper, a planning model of an energy router combined with the distribution network is established, which fully exploits the active and reactive power control abilities of the energy router to optimize the operation of the grid. The configuration problem is decoupled into two stages. The upper layer determines the location of the energy router and the parameters of the candidate new distribution lines for the ports. The lower layer calculates the optimal configuration of the energy router by minimizing the total annual cost. Because of the same rated bus voltage in the distribution network, the existing structure of the energy router is changed to be more applicable for the distribution network, and then the power flow model of the energy router is also modified. Due to the nonlinearity of the model, the planning model is converted into a mixed-integer second-order cone model to solve efficiently. In addition, some core factors influencing the optimal scheme of the energy router are also analyzed in this paper. Simulation results show that the optimal scheme of the energy router can significantly improve the economic deployment of the energy router, and optimize the network loss and power quality of the distribution network.

关键词： Capacity allocation distribution network energy router optimal operation

Aerial target threat assessment based on gated recurrent unit and self-attention mechanism

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Journal of Systems Engineering and Electronics 2024年第2期35卷 361-373页

作者： chen chen QUAN Wei SHAO Zhuang School of Automation Beijing Institute of TechnologyBeijing 100081China State Key Laboratory of Intelligent Control and Decision of Complex Systems Beijing 100081China

Aerial threat assessment is a crucial link in modern air combat, whose result counts a great deal for commanders to make decisions. With the consideration that the existing threat assessment methods have difficulties in dealing with high dimensional time series target data, a threat assessment method based on self-attention mechanism and gated recurrent unit(SAGRU) is proposed. Firstly, a threat feature system including air combat situations and capability features is established. Moreover, a data augmentation process based on fractional Fourier transform(FRFT) is applied to extract more valuable information from time series situation features. Furthermore, aiming to capture key characteristics of battlefield evolution, a bidirectional GRU and SA mechanisms are designed for enhanced ***, after the concatenation of the processed air combat situation and capability features, the target threat level will be predicted by fully connected neural layers and the softmax classifier. Finally, in order to validate this model, an air combat dataset generated by a combat simulation system is introduced for model training and testing. The comparison experiments show the proposed model has structural rationality and can perform threat assessment faster and more accurately than the other existing models based on deep learning.

关键词： target threat assessment gated recurrent unit(GRU) self-attention(SA) fractional Fourier transform(FRFT)

我国无缝钢管产业“十三五”回顾与“十四五”发展思考

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钢管 2021年第5期50卷 1-8页

作者：庄钢陈洪琪中国钢结构协会钢管分会天津300301

回顾了“十三五”时期我国无缝钢管产业的发展情况,结合《关于推动钢铁工业高质量发展的指导意见(征求意见稿)》,提出了“十四五”时期我国无缝钢管在产量,进出口量、企业重组、生产装备、技术和品种创新、绿色发展、智能制造、国际化... 详细信息

回顾了“十三五”时期我国无缝钢管产业的发展情况,结合《关于推动钢铁工业高质量发展的指导意见(征求意见稿)》,提出了“十四五”时期我国无缝钢管在产量,进出口量、企业重组、生产装备、技术和品种创新、绿色发展、智能制造、国际化等方面的发展建议。

关键词：无缝钢管 “十四五” 发展建议

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关于江西动漫产业链构建的几点思考

江西科技师范大学学报 2019年第4期14卷 65-69,64页

作者：陈洪琪钟良江西科技师范大学

江西动漫产业发展较为落后,有影响力的动漫企业较少,动漫原创产品市场占有率较低;产业发展布局不合理,产业链构建不完善,在人才培养与引进,动漫题材选择,动漫产品研发与营销推广等方面都有很大改进的空间。做大做强江西动漫产业,需要从... 详细信息

江西动漫产业发展较为落后,有影响力的动漫企业较少,动漫原创产品市场占有率较低;产业发展布局不合理,产业链构建不完善,在人才培养与引进,动漫题材选择,动漫产品研发与营销推广等方面都有很大改进的空间。做大做强江西动漫产业,需要从全产业链的高度通盘考虑,在借鉴发达国家和地区动漫产业发展经验的基础上,立足省情,依托赣鄱文化走出一条适合江西动漫产业发展之路。

关键词：动漫产业链构建

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关于现代企业顾客关系管理能力的思考

科技广场 2005年第9期 28-30页

作者：陈洪琪周叶江西科技师范学院南昌330013

现代企业顾客关系管理的对象是企业与顾客之间的伙伴与交易关系,实施顾客关系管理应该针对不同的顾客群体制定不同的营销与服务策略,以提高顾客的满意度,最终达到企业与顾客共同价值最大化目的,并把现代企业的顾客关系管理能力分为自我... 详细信息

现代企业顾客关系管理的对象是企业与顾客之间的伙伴与交易关系,实施顾客关系管理应该针对不同的顾客群体制定不同的营销与服务策略,以提高顾客的满意度,最终达到企业与顾客共同价值最大化目的,并把现代企业的顾客关系管理能力分为自我超越能力、心智模式能力、共同愿景能力、团队学习能力以及系统思考能力等五个方面。

关键词：现代企业顾客关系管理能力

Whole-genome Sequencing Reveals Autooctoploidy in Chinese Sturgeon and Its Evolutionary Trajectories

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Genomics, Proteomics & Bioinformatics 2024年第1期22卷 51-65页

作者： Binzhong Wang Bin Wu Xueqing Liu Yacheng Hu Yao Ming Mingzhou Bai Juanjuan Liu Kan Xiao Qingkai Zeng Jing Yang hongqi Wang Baifu Guo Chun Tan Zixuan Hu Xun Zhao Yanhong Li Zhen Yue Junpu Mei Wei Jiang Yuanjin Yang Zhiyuan Li Yong Gao Lei chen Jianbo Jian Hejun Du Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes Yichang 443100China Chinese Sturgeon Research Institute China Three Gorges CorporationYichang 443100China Yangtze River Biodiversity Research Center China Three Gorges CorporationWuhan 430014China BGI-Shenzhen Shenzhen 518083China BGI Genomics BGI-ShenzhenShenzhen 518083China Department of Biotechnology and Biomedicine Technical University of DenmarkLyngby 2800Denmark River Basin Complex Administration Center China Three Gorges CorporationYichang 443100China BGI-Sanya BGI-ShenzhenSanya 572025China Yangtze Eco-Environment Engineering Research Center China Three Gorges CorporationBeijing 100038China

The order Acipenseriformes,which includes sturgeons and paddlefishes,represents“living fossils”with complex genomes that are good models for understanding whole-genome duplication(WGD)and ploidy evolution in ***,we sequenced and assembled the first high-quality chromosome-level genome for the complex octoploid Acipenser sinensis(Chinese sturgeon),a critically endangered species that also represents a poorly understood ploidy group in *** results show that *** is a complex autooctoploid species containing four kinds of octovalents(8n),a hexavalent(6n),two tetravalents(4n),and a divalent(2n).An analysis taking into account delayed rediploidization reveals that the octoploid genome composition of Chinese sturgeon results from two rounds of homologous WGDs,and further provides insights into the timing of its ploidy *** study provides the first octoploid genome resource of Acipenseriformes for understanding ploidy compositions and evolutionary trajectories of polyploid fishes.

关键词： Chinese sturgeon Whole-genome sequencing Autooctoploid Polyploidization and diploidization Whole-genome duplication

Planning Model for Energy Routers Considering Peer-to-Peer Energy Transactions Among Multiple Distribution Networks

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1026-1043页

作者： Meifu chen Mingchao Xia Qifang chen School of Electrical Engineering Beijing Jiaotong UniversityBeijing 100044China IEEE

A high proportion of renewable energy affects the power quality of distribution networks,and surplus energy will be sold to the upstream grid at a low *** this paper,considering peer-to-peer energy transactions,the energy router-based multiple distribution networks are analyzed to solve the above problems and realize collaborative consumption of renewable ***,the investing cost of an energy router is high,and research on the economic operation of energy routers in distribution networks is ***,this paper establishes a planning model for energy routers considering peer-to-peer energy transactions among distribution networks,and explores the benefits of peer-to-peer energy transactions through energy router based multiple distribution networks.A structure of an energy router suitable for peer-to-peer energy transactions is selected,and a power flow calculation model based on a multilayer structure is *** energy router’s scheduling model is established,and unique functions of the energy router and revenue of each distribution network are considered.A power flow calculation model based on peer-to-peer interconnection of multiple distribution networks through energy routers is also ***,simulation results verify the effectiveness of the proposed planning *** show that peer-topeer energy transaction among distribution networks through energy routers can effectively reduce the comprehensive cost of distribution networks,significantly improve the power quality of the distribution networks,and reduce the impact of power fluctuation on the upstream grid incurred by the distribution network.

关键词： Capacity allocation energy router multiple distribution networks peer-to-peer energy transaction power flow optimization

2014年云南鲁甸地震触发地质灾害发育分布规律及与景谷、盈江地震对比研究

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地质学报 2016年第6期90卷 1086-1097页

作者：殷志强徐永强陈红旗撒兰鹏姜兴武中国地质环境监测院北京100081 云南地质工程勘察设计研究院昭通分院云南昭通657000

2014年8月3日16时30分,云南省鲁甸县龙头山镇Ms6.5级地震造成617人死亡,触发1700多处崩塌滑坡等地质灾害点,同年,该省又发生了Ms6.6级景谷地震和Ms6.1级盈江地震。笔者在对鲁甸等3次地震区次生地质灾害现场调查和遥感解译的基础上,研究... 详细信息

2014年8月3日16时30分,云南省鲁甸县龙头山镇Ms6.5级地震造成617人死亡,触发1700多处崩塌滑坡等地质灾害点,同年,该省又发生了Ms6.6级景谷地震和Ms6.1级盈江地震。笔者在对鲁甸等3次地震区次生地质灾害现场调查和遥感解译的基础上,研究了鲁甸地震触发地质灾害的发育分布规律,首次提出了地震"干滑坡"的概念,并从震级、地形地貌、活动构造、人口密度等多个方面对比了鲁甸地震、景谷地震和盈江地震触发地质灾害的异同点。主要结论有:1鲁甸地震后新增地质灾害数量显著增加,其主要分布在水系的深切峡谷区,表现为"干滑坡"特征;2大型、特大型崩塌滑坡灾害点主要受活动断裂控制;3地震地质灾害的发育特征与地貌高程和微地貌具有很好的响应关系;4鲁甸震区的地形坡度明显大于景谷和盈江震区,地形坡度是鲁甸地震区地质灾害发育的主要控制因素;5我国西南高山峡谷区的断层、河流、阶地和城镇是相互依存,不可分割的地质环境载体,震后房屋选址、重建规划不仅要注意房屋抗震问题,还应充分考虑地质环境安全问题。

关键词：鲁甸地震触发地质灾害分布规律对比研究