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

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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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Directional polarization modulation for secure dual-polarized satellite communication

Directional polarization modulation for secure dual-polarize...

引用

2019 International Conference on Communications, Information system, and Computer Engineering, CISCE 2019

作者： Luo, Zhangkai Pei, Zhongmin Zou, Bo Science and Technology on Complex Electronic System Simulation Laboratory Space Engineering University Beijing China

ISBN: (纸本)9781728136813

This paper proposes a directional polarization modulation method to enhance the transmission security in dual-polarized satellite communications. Indeed, two components of the polarized signal are respectively transmitted by two orthogonally polarized beams, which are formed by a dual-polarized array. Subsequently, a deviation angle is designed, which is used to determine the difference between the desired direction and the direction of the polarized beams. With a positive deviation angle, two polarized beams point to different directions. In this manner, only in the desired direction that two beam gains equal to each other, the polarized signals can be demodulated accurately, while the constellation is distorted in undesired directions, which makes it difficult to recover the information and, thus the transmission security is enhanced. Theoretical analysis and simulation results demonstrate the security performance of the proposed method. © 2019 IEEE.

关键词： Satellites

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Parallel modeling and simulation environment for C4ISR system

Parallel modeling and simulation environment for C4ISR syste...

引用

2013 International Conference on Vehicle and Mechanical Engineering and Information technology, VMEIT 2013

作者： Liu, De Sheng Guo, Jing Science and Technology on Complex Electronic System Simulation Laboratory The Academy of Equipment Beijing 101416 China

ISBN: (纸本)9783037858202

C4ISR system is the core and base for improving the fight ability of SoS based on information system. Modeling and Simulation (M&S) is an efficient method to study on the C4ISR system. In order to meet the requirement for higher simulation performances due to the complexity and incessant development of the C4ISR system, and support parallel modeling and simulation to research on the design, analysis, assessment and application of C4ISR system, a parallel modeling and simulation environment is designed based on high performance computer. The architecture of software and hardware, system constructure and main application pattern are described. Practices proved that the environment solved the problem of complex models and large computing for C4ISR simulation system, and could be used in similar complex simulation system. © (2013) Trans Tech Publications, Switzerland.

关键词： Application programs

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Construction and Application of Knowledge Graph of Weapon and Equipment system of systems

Construction and Application of Knowledge Graph of Weapon an...

引用

2021 International Conference on electronic Information Engineering and Computer science, EIECS 2021

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

ISBN: (纸本)9781665416740

In the context of diversified types of weapon and equipment and massive data quantification, how to model and store, manage and apply the data of various types of weapon and equipment is a problem that needs to be solved. The article analyzes the characteristics of the weapon and equipment system and proposes a method to construct the knowledge graph of the weapon and equipment system based on this method, which first constructs the ontology in the top-down order, then defines the edge nodes and fills in the structured data. Finally, the application is carried out according to the constructed knowledge graph, and the future development direction is proposed. © 2021 IEEE.

关键词： Information management

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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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VRHD: An Interactive Visualization Method for Hyperspectral Data Based on Volume Rendering 5

VRHD: An Interactive Visualization Method for Hyperspectral ...

引用

5th IEEE International Conference on Signal and Image Processing, ICSIP 2020

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

ISBN: (数字)9781728168968

ISBN: (纸本)9781728168968

As the development of data visualization technology, it becomes more and more convenient to commit data analyzing and mining in some research areas. Data visualization paves the way to understand the abstract numbers in an intuitive manner. This paper focuses on the hyperspectral data analysis by visualization. We research the ray casting based volume data rendering method and propose the method termed Volume Rendering of Hyperspectral Data(VRHD) to visualize the hyperspectral data. The triple control elements including color, transparency and visual district are proposed to do the data analysis and solve the overlapping problem in cubic data visualization by traditional screen. The results prove that the proposed algorithm can help the data user or analyzer to grasp the character of the data such as noise distribution in an integral view. © 2020 IEEE.

关键词： Remote sensing

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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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WebGL-based Network Multi-view Visualization Interactive Analysis Method 4

WebGL-based Network Multi-view Visualization Interactive Ana...

引用

4th International Conference on Computer Information science and Artificial Intelligence, CISAI 2021

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

ISBN: (纸本)9781665406925

The space-ground integrated network is one of the important information infrastructures of the country in the future. In order to display its network structure in all directions and from multiple angles, a multi-view visualization interactive analysis method is proposed. First introduces the relevant basic technology, and then constructs the network dynamic model, which is mainly divided into three parts: link visibility analysis, relative motion analysis and visualization model construction. Finally, the digital earth technology is based on a unified coordinate system and data source. Establish a multi-dimensional view on it and provide a variety of interactive operations. Experimental results show that this method can more comprehensively show the structure of the space-ground integrated network, and help users understand its evolutionary law. © 2021 IEEE.

关键词： complex networks

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A Light Gradient Boosting Machine Based Effectiveness Prediction Method of Space Reconnaissance system 7

A Light Gradient Boosting Machine Based Effectiveness Predic...

引用

7th IEEE Advanced Information technology, electronic and Automation Control Conference, IAEAC 2024

作者： Liu, Jiahuan Jian, Ping Space Engineering University Science and Technology on Complex Electronic System Simulation Laboratory Beijing China

ISBN: (纸本)9798350339161

To address the problem of effectiveness evaluation of space reconnaissance systems with limited data sets, vast array of indexes and inadequate model interpretability, an interpretable effectiveness prediction method based on Light Gradient Boosting Machine(LightGBM) and the Shapley Additive exPlanations(SHAP) is proposed. The thorough evaluation process is given and the index system of space reconnaissance systems is built. Then LightGBM is used to establish a nonlinear mapping the model between the indexes and the effectiveness. Additionally, the model's hyperparameters are adjusted using Bayesian optimization to improve accuracy and lessen computational load. Furthermore, the feasibility of the proposed method is validated by modeling and evaluating the performance of the space reconnaissance system under a particular operational scenario. The experimental results show that compared with other mainstream machine learning methods, the proposed method has higher prediction accuracy and can efficiently extract the potential characteristics of the space reconnaissance system. © 2024 IEEE.

关键词： Forecasting

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