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检索条件"机构=Science and Technology on Complex Electronic System"

共 388 条记录，以下是31-40 订阅

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Destructive Resistance Analysis of UAV Cluster Network Based on Cascade Failure Model 2

Destructive Resistance Analysis of UAV Cluster Network Based...

引用

2nd International Conference on Computer science, electronic Information Engineering and Intelligent Control technology, CEI 2022

作者： Yang, Yang Liu, Desheng Chang, Qing Space Engineering University Science and Technology on Complex Electronic System Simulation Laboratory Beijing China

ISBN: (数字)9781665476164

ISBN: (纸本)9781665476164

The complex network theory is used to construct the Unmanned Aerial Vehicle (UAV) cluster network and its characteristic indicators are analyzed. The cascade failure theory is used to study the destructive resistance of the UAV cluster network under different node capacities and attack information, etc. The results show that increasing the node capacity can effectively improve the network destructibility, and the cost and network performance requirements can be balanced by setting appropriate node capacity parameters;the UAV cluster network has higher destructibility under random attacks and shows vulnerability under deliberate attacks, and obtaining some important node information can also significantly reduce the network destructibility. © 2022 IEEE.

关键词： complex networks

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Current Situation of Denoising And Target Detection In Hyperspectral Images 3

Current Situation of Denoising And Target Detection In Hyper...

引用

3rd International Conference on Geology, Mapping and Remote Sensing, ICGMRS 2022

作者： Li, Guanzhe Hao, Hongxiong Wu, Lingda Liu, BoYu Space Engineering University Science and Technology on Complex Electronic System Simulation Laboratory Beijing China

ISBN: (数字)9781665485951

ISBN: (纸本)9781665485951

Hyperspectral images technology can greatly enhance the extraction ability of ground object information. It is a research hotspot and frontier field in the field of remote sensing in recent years, and has great application value and broad development prospects in many related fields This paper summarizes the methods of denoising and target detection in hyperspectral *** help researchers better sort out the relevant algorithms. © 2022 IEEE.

关键词： Remote sensing

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Research on Multi-Satellite Mission Planning Based on Improved Genetic Algorithm 3

Research on Multi-Satellite Mission Planning Based on Improv...

引用

3rd International Conference on Computer science and Management technology, ICCSMT 2022

作者： Yang, Yang Liu, Desheng Space Engineering University Science and Technology on Complex Electronic System Simulation Laboratory Beijing China

ISBN: (纸本)9798350320404

For the multi-satellite mission planning problem, a multi-satellite mission planning model is constructed by considering the constraints of satellite's visibility window to the target, attitude transition, storage and energy consumption, and an improved genetic algorithm is proposed to solve the model. The algorithm adopts the real number coding method to improve the solution efficiency, introduces the adaptive mechanism and the elite retention strategy, which improves the problems that the genetic algorithm is easy to fall into local optimum and converge early. The effectiveness of the improved genetic algorithm for solving multi-star mission planning is verified through simulation case analysis, and it is compared and analyzed with the standard genetic algorithm. The results show that the well genetic algorithm can achieve faster convergence and better planning results, and has better adaptability to large-scale mission planning problems. © 2022 IEEE.

关键词： Genetic algorithms

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An Algorithm for Detecting the Discontinuous Areas in Interferometric Phase Images 7

An Algorithm for Detecting the Discontinuous Areas in Interf...

引用

7th International Conference on Image, Vision and Computing, ICIVC 2022

作者： Hongxing, Hao Ronghuan, Yu Huaquan, Hu Jing, Guo Space Engineering University Science and Technology on Complex Electronic System Simulation Laboratory Beijing China

ISBN: (数字)9781665467346

ISBN: (纸本)9781665467346

Interferometric measurements have been widely used in medical diagnosing and geographic mapping. The detection of discontinuous areas in interferometric phase images is very significant for subsequent processing (such as denoising, unwrapping, and so on). In this paper, the Wrapped Laplace Transform is proposed to adapt the edge detection methods to the characteristics of the interferometric phase image. Thresholding is committed to the transformation results to generate the preliminary detection results of the discontinuous area. Then the detected discontinuous areas are restored by dilation and erosion. The experimental results show that the proposed algorithm in this paper can effectively detect discontinuous areas in the interference phase image, while avoiding the effects of interference fringes. © 2022 IEEE.

关键词： Laplace transforms

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Research on Architecture Design Method of Joint Information Environment of Space-based Network Information system based on Multi-viewpoint 6

Research on Architecture Design Method of Joint Information ...

引用

6th IEEE Information technology and Mechatronics Engineering Conference, ITOEC 2022

作者： Ping, Jian Wei, Xiong De-Sheng, Liu Space Engineering University Science and Technology on Complex Electronic System Simulation Laboratory Beijing China

ISBN: (纸本)9781665431859

Based on the design goal of the joint information environment architecture of space-based network information system, this paper proposes the basic framework and design process of the joint information environment architecture of space-based network information system according to the multi-viewpoint design idea of 'competency-based, information-oriented and service-oriented'. The view models of Capability Conception CV-1, Information Activity Model IAV-1, Advanced Operational Concept Diagram OV-1, system Composition Description Diagram SV-1 and Information Service List SvcV-1 are constructed, which provide theoretical basis and technical reference for the research of joint information environment of space-based network information system. © 2022 IEEE.

关键词： Information services

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Gearman Based Distributed Computation of Space Target Photometry

Gearman Based Distributed Computation of Space Target Photom...

引用

2022 International Conference on Informatics, Networking and Computing, ICINC 2022

作者： Tian, Miao Li, Peixuan Song, Wenbo Xu, Jieping Space Engineering University Science and Technology on Complex Electronic System Simulation Laboratory Beijing China

ISBN: (纸本)9798350309690

Photometry is an important optical characteristic of space targets. Due to the huge computational volume of the photometry of the full-angle of a space target, the computation time is long and is difficult to meet the realistic demand. In this study, a Gearman based distributed parallel computation framework is constructed to automatically decompose and distribute the photometry computation tasks, automatically balance the computational load, and compose the computational results. This method divides the target photometry calculation into four independent variables, conducts distributed parallel calculation respectively, and finally integrates the calculation results into single target photometry information. The distributed parallel photometry computation method based on Gearman framework is important for fast computation of full-angle photometry data of space targets and assisting space target situational awareness tasks. © 2022 IEEE.

关键词： Photometry

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Research on the Construction Method of Knowledge Graph 3

Research on the Construction Method of Knowledge Graph

引用

2022 3rd International Conference on Computer Information and Big Data Applications, CIBDA 2022

作者： Xia, Xudong Yu, Ronghuan Science and Technology on Complex Electronic System Simulation Laboratory Space Engineering University Beijing China

ISBN: (纸本)9783800758760

With the continuous innovation of Internet technology, the explosive growth of information has become one of its most obvious characteristics, and how to break through the problem of data storage has become an urgent challenge to be solved. The knowledge graph proposed by Google can intuitively describe the relationship between entities in the objective world in the form of a graph, which is of great help in solving this problem. Firstly, the basic concept of knowledge graph is expounded, and include the key steps of knowledge extraction, knowledge fusion, knowledge storage, etc. Taking the relationship between confirmed cases of the coronavirus disease 2019(COVID-19) in a certain city over the recent period as an example, a knowledge graph of case relationship is constructed. The results indicated that the knowledge graph intuitively shows the transmission path of the epidemic, which can provide certain help for the effective prevention and control of the epidemic. © VDE VERLAG GMBH - Berlin - Offenbach.

关键词： Digital storage

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An anti-jamming method based on joint spatial-polarimetric processing for FDA-MIMO Radar 4

An anti-jamming method based on joint spatial-polarimetric p...

引用

4th International Conference on Signal Image Processing and Communication, ICSIPC 2024

作者： Zhang, Yunhui Pang, Bo Dai, Dahai Tan, Zhengkuan College of Electronic Science and Technology National University of Defense Technology Changsha410073 China State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System National University of Defense Technology Changsha410073 China

ISBN: (纸本)9781510682467

With the continuous development of radar jamming methods and styles, radar systems are facing more and more complex electromagnetic environment, resulting in limited suppression performance through spatial anti-jamming measures solely. In order to solve the problem, this paper proposes an anti-jamming method based on joint spatial-polarimetric processing for Frequency Diverse Array Multiple-Input Multiple-Output (FDA-MIMO) system. Firstly, the signal model of Polarimetric FDA-MIMO (PFDA-MIMO) is established. Based on this model, a joint spatial-polarimetric adaptive filtering method is proposed and experiments are carried out to demonstrate the advantages of joint spatial-polarimetric processing in anti-jamming. Compared to the filtering method that only utilizing the spatial information, this method has a better performance dealing with multidimensional jamming and improves the ability of FDA-MIMO in resisting main lobe jamming. © 2024 SPIE.

关键词： Adaptive filtering

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Target Identity Fusion Method Based on Improved DS Evidence Theory 3

Target Identity Fusion Method Based on Improved DS Evidence ...

引用

3rd International Conference on electronic Information Engineering and Computer, EIECT 2023

作者： Wang, Yi Liu, Desheng Yang, Yang Liu, Jiatong Space Engineering University Science and Technology on Complex Electronic System Simulation Laboratory Beijing101400 China Space Engineering University Beijing101400 China

ISBN: (纸本)9798350357707

Target data detected by multi-sensors often differ from each other due to different sensor performances, resulting in uncertainty of target identity information. Traditional Dempster-Shafer (DS) evidence theory may achieve counter-intuitive outcomes facing evidence conflicts caused by the uncertainty. Aiming for this, a novel target identity fusion method based on improved DS evidence theory is proposed in this paper. Specifically, the method considers the correlation between evidences and the importance of evidences integrally. First, an improved conflict measurement method based on Pearson correlation coefficient matrix is devised to measure the evidence credibility. Next the information volume of evidences is measured by Deng-entropy to indicate the evidence uncertainty. Then the credibility and uncertainty are weighted and combined to modify the basic probability assignment (BPA) of evidences. Ultimately, the modified evidences are fused by Dempster's combination rule to acquire the final results. Through three numerical analysis examples, this paper demonstrates the superiority of the proposed method over typical previous approaches, which can effectively process evidence conflicts in multi-sensors information fusion. © 2023 IEEE.

关键词： Numerical methods

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Research on space construction and selection method of space-based information support equipment

Research on space construction and selection method of space...

引用

2022 International Conference on Aerospace, Aerodynamics and Mechatronics Engineering, AAME 2022

作者： Chang, Qing Liu, Desheng Yang, Yang Science and Technology on Complex Electronic System Simulation Laboratory Space Engineering University Beijing101416 China

With the rapid development of information technology and space technology, the important position of space-based information support equipment is increasingly prominent. However, the increasing types and quantities of space-based information support equipment also put forward higher requirements for the formulation of combat plans, decision-making and deployment of combat equipment. In this paper, based on the seven-step method, an ontology construction method suitable for space-based information support equipment is proposed, and the ontology construction tool Protégé is used to realize the ontology modeling of space-based information support equipment. By acquiring open source satellite data, the knowledge map construction tool Neo4j is used to construct the knowledge map of space-based information support equipment. Finally, the space-based information support equipment conforming to the combat mission can be obtained to provide assistance for the formulation of the combat plan and the decision of equipment utilization. © Published under licence by IOP Publishing Ltd.

关键词： Decision making

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