Signal and Information Processing, Networking and Computers : Proceedings of the 10th International Conference on Signal and Information Processing, Networking and Computers (ICSINC)

This book collects selected papers from the 10 th Conference on Signal and Information Processing, Networking and Computers held in Xi’Ning, China held in July, 2022. The book focuses on the current works of information theory, communication system, computer science, aerospace technologies and big data and other related technologies. People from both academia and industry of this field can contribute and find their interests from the book. Preface Committee Members Contents Information Technology Session 1 A New Multi-instance Learning Algorithm Integrated with TF-IDF for Entity Relation Extraction in Electronic Medical Records 1 Introduction 1.1 Background 1.2 Our Innovation 2 Model Architecture 2.1 Overview 2.2 Neural Network 2.3 Attention Mechanism 3 Experiment and Analysis 4 Conclusion References A Deep Learning Algorithm Using Feature Engineering to Adjust Attention Mechanisms and Neural Network for Cloud Security Detection 1 Introduction 2 Model Architecture 2.1 Overview 2.2 Neural Network 2.3 Attention Mechanism 3 Experiment 3.1 Data Preprocessing 3.2 Test and Result 4 Conclusion References The Design and Implementation of a Ranging System Based on the DSSS 1 Introduction 2 The Principle of Incoherent Spread Spectrum Ranging 3 PN Code Selection 4 Implementation of the Ranging 5 Despreading and Demodulation Principle 6 System Performance Test Verification 7 Conclusion References Application of Grey Approximation Ideal Solution Ranking Methods in Optimal Selection of Satellite Initial Orbits 1 Introduction 2 Design Idea of Technique for Grey Approximation Ideal Solution Ranking Method (GAISRM) 3 Solving Steps of GAISRM 3.1 Optimal Theoretical Solution 3.2 Optimal Weighted Solution 4 Example Calculation 4.1 Optimal Theoretical Solution 4.2 Optimal Weighted Solution 5 Comparative Analysis of SPEARMAN’S Correlation Coefficient 6 Conclusions References Filter and Closed Loop Control Technology of Piezoelectric Drivers 1 The Introduction 2 Design of Filtering Closed-Loop Control Algorithm 2.1 PID Control Algorithm Design 2.2 Butterworth Filter Design 3 Test Verification and Result Analysis 4 Conclusion References A Novel Back-Feed Double-Layer Microstrip Antenna 1 Introduction 2 Antenna Structure Design 3 Simulation and Measured Results 4 Conclusion References A Full-Digital Test Method for Satellite-Borne Software 1 Foreword 2 Full-Digital Software Testing Environment Construction 2.1 Digital Test Platform Construction 2.2 External Input Modeling 3 Test Case Design 4 Situation of Application 4.1 Posture and Orbit Control Software Test 4.2 Energy Management Software Testing 5 End References 3D Warehousing: Enabling Intelligent Warehousing Visualization Based on Three.js 1 Introduction 2 Key Technology 2.1 WebGL Technology and Three.js Engine 2.2 3D Model Production 3 System Architecture 4 System Function 4.1 Warehousing Data Visualization 4.2 Device Data Visualization 4.3 Security Monitoring Visualization 4.4 Warehouse Area Roaming and Inventory Increases and Decreases Visualization 5 System Test 6 Conclusion References Deep Learning Neural Networks with Auto-adjustable Attention Mechanism for Server Fault Diagnosis Under Log Data 1 Introduction 2 Model Architecture 2.1 Overview 2.2 Pre-processing 2.3 Seq2Seq with Attention Mechanism 3 Experiment 4 Conclusion References A Hierarchical Classification Algorithm of Spacecraft Telemetry Data Based on Time Series Characteristics 1 Introduction 2 Classification Algorithm 2.1 Pre-processing Module 2.2 Analysis Module 2.3 Feature Process Module 2.4 Clustering Module 2.5 Classification Module 3 Automated Procedures 3.1 Clustering Period 3.2 Classification Period 4 Data Validation 5 Conclusion References A Saliency-Transformer Combined Knowledge Distillation Guided Network for Infrared Small Target Detection 1 Introduction 2 Related Work 3 The Proposed Method 3.1 The Overall Architecture of ST-KDNet 3.2 Transformer-Based Segmentation Branch 3.3 Saliency Detection Branch 3.4 Optimization of ST-KDNet 4 Experiments and Analysis 5 Conclusion References Research on Cloud-Edge Collaboration Based on Object Storage for Internet of Things 1 Introduction 2 Related Work 3 Cloud-Edge Collaboration Architecture Based on Object Storage for Internet of Things 3.1 Object Storage on Edge Side 4 Conclusion References Industrial Defect Detection System Based on Edge-Cloud Collaboration and Task Scheduling Technology 1 Introduction 2 Defect Detection System 3 Resource Perception and Task Scheduling 3.1 Adjust Production Line Task 3.2 Task Assignment on the Edge-Side 3.3 Joint Execution Strategy 4 Defect Detection of SMT Production Line 5 Conclusion References Actuator Grouping Optimization Method of Antenna Reflector Based-on Ant Colony Algorithm 1 Introduction 2 Reflector System Modeling 2.1 Description of the Grid Reflector 2.2 Finite Element Model 2.3 Out-of-Plane Displacement Description 3 Optimization Model and Processes 4 Results and Discussions 5 Conclusions References A Method to Measure the Quality of a Cloud Network Across Multiple Resource Pools 1 Introduction 2 Related Works 3 Method 3.1 User Experience Index System 3.2 Experience Quality Satisfaction Evaluation Method 3.3 Experience Quality Satisfaction Evaluation Method 4 Implementation Details 5 Conclusion and Future Work References A New Cloud Computing Deployment Model: Proprietary Cloud 1 Introduction 2 Related Works 3 Characteristics of Proprietary Cloud 3.1 Architecture 3.2 The Difference Between the Two Models 3.3 Common Deployment Policies 4 Conclusion and Future Work References Overview of the Development of Secure Access Service Edge 1 Introduction 1.1 Development Background 1.2 The Meaning of SASE 2 The Key Capabilities and Architectures 2.1 The Key Capability of SASE 2.2 The Deployment Architectures of SASE 3 The Future Trends of SASE in China References Optimization and Numerical Investigation of Micro-pin-Fin Structure on Heat Sink with Checkerboard Nozzles 1 Introduction 2 Geometric and Numerical Models 2.1 Geometric Model 2.2 Numerical Models 3 Results and Discussions 3.1 Heat Transfer and Fluid Flow 3.2 Optimization and Comparison of Variable Flow 4 Conclusion References A Method of Design and Evaluation of X-ray Communication in Black-Out Area 1 Introduction 2 Method 2.1 Main Scheme 2.2 Communication Performance Analysis 3 Conclusion References A Robust DOA Estimation Method Based on Auxiliary Sensors and Power Inversion 1 Introduction 2 Signal Model 3 Proposed Method 3.1 Using Auxiliary Sensors Eliminating the Effect of Sensor Coupling 3.2 Using Matrix Transformation Eliminating the Effect of Coherent Signals 3.3 Using the Power Inversion Method to Get the Spatial Spectral in Gaussian Colored Noise 4 Simulation Results 5 Conclusion References Diffusion Convolution Graph Attention Network for Spatial-Temporal Prediction 1 Introduction 2 Related Work 3 The DCGAT Model 3.1 Diffusion Bidirectional Random Walks 3.2 Graph Attention Network 3.3 Convolution-LSTM 3.4 Autoregressive 4 The DCGAT Model 4.1 Performance Comparison 5 Conclusion References Fast Estimation Technology of Orbit Information for Non-cooperative Space Targets Based on AREKF Filtering Theory 1 Introduction 2 Modeling and Analysis of Relative Motion of Non-cooperative Target 3 Design of AREKF Filtering Algorithm 4 Simulation Analysis 5 Conclusion References Information Technology Session 2 Design of Intelligent Power Supply and Distribution Test System for Small Satellite Based on Distributed Structure 1 Introduction 2 Design of Distributed Power Supply and Distribution Test System 2.1 Design of Main Control System 2.2 Design of Test Station System 3 Features and Benefits 4 Conclusion References Design of Small Satellite Power Supply Interface Test System Based on PXI Bus 1 Introduction 2 Function and Performance of Power Supply Interface Test System 3 Design of Power Supply Interface Test System 3.1 Hardware Design 3.2 Software Design 4 System Verification 5 Conclusion References Research on Method of On-Orbit Evolution for Aerospace Control Software 1 Introduction 2 Software Evolution Overview 3 Motivation 3.1 Uncertain Environmental Changes 3.2 Unknown On-Orbit Faults 3.3 Changeable Requirements 4 Evolution Process of Aerospace Control Software 5 Key Technologies 5.1 Architecture Modeling 5.2 Unified Description of Adaptive Elements 5.3 On-Orbit Evolution Knowledge Base Construction 5.4 On-Orbit Evolution Requirement Perception and Event Recognition Mechanism 5.5 Policy-Based Adaptive Decision Making 6 Conclusion References Research on Automatic Assembly Technology for Spacecraft System 1 Introduction 2 Establishment of the System 2.1 System Composition 2.2 Working Principle 3 Key Technology Applications 3.1 Visual Guidance and Recognition 3.2 Path Planning and Obstacle Avoidance 3.3 Product Grab 3.4 Flexible Assembly 4 Experimentation Validation 4.1 Experimentation Items 4.2 Experimentation Results 5 Conclusion References Design and Research of Multi-user Distributed Configuration Management Based on Zookeeper 1 Introduction 2 Zookeeper Introduction 3 Implementation Scheme 4 Test 5 Summary References A Complete Ensemble Local Mean Decomposition and Its Application in Doppler Radar Vital Signs Monitoring System 1 Introduction 2 Materials and Methods 2.1 Local Mean Decomposition 2.2 Ensemble Local Mean Decomposition 2.3 Complete Ensemble Local Mean Decomposition 3 Application to Doppler Radar Data 4 Conclusions References The Key Research of High Speed Camera Based on Multiple Core CMOS Sensors 1 Introduction 2 The Key Technology of High Speed Camera 3 The Process of High Speed Camera 4 Conclusion References Research on Cargo Level Optimization Based on Multi-objective Optimization Algorithm 1 Introduction 2 Literature Review 2.1 Multi-objective Optimization 2.2 Crossover Method 2.3 Mutation Mode 3 Cargo Space Planning Problem Model 3.1 Problem Description 3.2 Adaptation Function Design 3.3 Cargo Space Capacity Formula Design 3.4 Algorithm Flow 4 Experiment and Analysis 5 Conclusion References The Application of Single Pulse Output Module Integrated by FPGA in On-Board Electronic Products 1 Introduction 2 Common Problems in Practical Applications 3 The Concealment of the Problem 4 Design Optimization Scheme and Verification 5 Conclusion References Design of Steady Speed Control System for Space Borne Scanning Loads 1 Introduction 2 Design of System 3 Factors of Influencing Speed Ripple 3.1 Design of Motor with Minimized Torque Ripple 3.2 Analysis of Speed Quantization Error 4 Design of Algorithm 4.1 Modeling of PMSM Current Loop 4.2 Modeling of PMSM Speed Loop 5 Simulation and Test Results 6 Conclusion References Research on Slotting Optimization Based on MOEA/D 1 Introduction 2 Overview of Multi-objective Slotting Optimization Problem 3 Algorithm Description 3.1 The Algorithmic Framework of MOEA/D 3.2 Evolutionary Operator Selection 4 Instance Testing 4.1 Parameter Setting 4.2 Operator Selection 5 Conclusion References An Improved Density Peak Clustering Algorithm Based on Gravity Peak 1 Introduction 2 Related Works 3 Method 3.1 Discovery of Gravity Centers 3.2 Clustering Process of IDPC-GP 4 Experiments 4.1 Datasets 4.2 Parameter Test 4.3 Performance Comparison Test 5 Conclusion References A DPC Based Recommendation Algorithm for Internship Positions 1 Introduction 2 Related works 3 Method 4 Experiments 4.1 Datasets 4.2 Algorithm Implementation and Comparison Test 5 Conclusion References Optimal Method of Air Cargo Loading Under Multi-constraint Conditions 1 Introduction 2 Construction of Cargo Aircraft Loading Optimization Model 2.1 Problem Description 2.2 Model Construction 3 Algorithm Design 4 Example Analysis 5 Conclusion References Research on Software Synthesis Method for Spacecraft Control System 1 Introduction 2 Abstract Expression and Semantic Model for Software IP 2.1 Enlightenment of IC Design Thought for Software Reusable Assets 2.2 Model Definition of Software IP 3 Domain Oriented Software IP Construction 3.1 Data Sample Software IP: DataSample 3.2 Attitude Calculation Software IP: AttCalc 3.3 Control Calculation Software IP: CtrlCalc 3.4 Phase Transition Software IP: PhaseCvt 4 Domain Oriented Experimental Verification 5 Conclusion and Prospects References Prediction and Analysis of Infectious Disease Visit Data Based on DPC 1 Introduction 2 Related Work 3 Method 3.1 Data Preprocessing 3.2 Data Analysis and Visualization 4 Experiments 5 Conclusion References Research on the Method of Improving the Accuracy of MRP Calculation Through Big Data in Aerospace Enterprise 1 Background 2 Problems 3 Solution Ideas 4 Application Cases 5 Summary References Design and Application of Bad Block Management Strategy for On-Board Solid-State Memory 1 Introduction 2 On-Board Solid-State Memory Architecture 2.1 System Composition and Principle 2.2 Traditional Bad Block Management Strategy 3 Bad Block Detection Replacement Strategy 4 Implementation of Bad Block Management Strategy 4.1 Data Detection Module 4.2 Bad Block Marking Module 4.3 Telemetry Output Module 4.4 Bad Block Replacement Module 5 Comparison Between Traditional Method and Real-Time Detection Strategy 6 Conclusion References An Automated Scoring System for Photoshop Course in Secondary Vocational Colleges 1 Introduction 2 Proposed PsIQA Method 2.1 Edge Similarity 2.2 Color Similarity 2.3 Texture Similarity 3 Proposed Scoring System for Photoshop Course 3.1 Environment 3.2 System Function 4 Experimental Results 4.1 Evaluation Protocols 4.2 System Test 4.3 Computational Cost 5 Conclusion References Discussion on the Application of Contributing Student Pedagogy in Vocational Education “Computer Network Technology” 1 Introduction 2 Contributing Student Pedagogy 3 Current Situation of Vocational Education Teaching and Necessity of Shared Teaching Method 3.1 Vocational Education Reform and Transformation 3.2 The Advent of the Information Age and the Development of Smart Education 3.3 The Necessity of Shared Teaching Method 4 Cases of Teaching Design and Contributing Student Pedagogy in the Course “Computer Network Technology” 4.1 Case Introduction 4.2 Teaching Objectives and Requirements 4.3 Learning Target 4.4 Task Design 4.5 Evaluation Method 5 Conclusion and Future Outlook References Research on NURBS Interpolation Algorithm Based on Newton Iteration and Adams Equation 1 Introduction 2 NURBS Function and Interpolation Theory 2.1 The NURBS Formulation 2.2 Parametric Curve Interpolation Theory 3 NURBS Interpolation Algorithm 3.1 Velocity-Adaptive Module 3.2 Real-Time Interpolation 4 Simulation and Experimental Verification 5 Conclusion References Fake AP Detection Technology Based on Improved DBSCAN Algorithm 1 Introduction 2 CSI Phase Analysis 3 Fingerprint Feature Extraction 3.1 Preliminary Experiment and Analysis 3.2 Phase Unwrapping 3.3 Phase Filter 3.4 Fingerprint Feature Extraction 4 Algorithm Improvement 5 Simulation Experiment and Analysis 5.1 Experimental Setup 5.2 Simulation Analysis 6 Conclusion References Vehicles Location Estimation and Prediction in Integrated Sensing and Communications: Sensing Vehicles as Extended Targets 1 Introduction 2 System Model 3 Parameter Estimation with OTFS Modulation 3.1 General Process of Sensing-Assisted Predictive Beam Tracking 3.2 Sensing Parameters of the CR 3.3 Downlink Communication 4 Simulations 4.1 Simulation of Angle Estimation 4.2 Simulation of Location Estimation 4.3 Comparison of Communication Performance 5 Conclusion References Research on Vehicle and Cargo Matching of Electric Materials Based on Weed Optimization Algorithm 1 Introduction 2 Vehicle and Cargo Matching Mathematical Model 2.1 Vehicle and Cargo Matching Mechanism 2.2 Application of Weed Optimization Algorithm in Vehicle and Cargo Matching 3 Experimental Results and Discussion 4 Conclusion References Improved MSFLA-Based Scheduling Method of Electric Power Emergency Materials 1 Mathematical Model of Vehicle Scheduling Problem 1.1 Classical Vehicle Scheduling Problem 1.2 Vehicle Scheduling Problem with Time Window 2 Design of MSFLA 2.1 Algorithm Types and Selection 2.2 The Principle of Shuffled Frog Leaping Algorithm 2.3 Mathematical Model of SFLA 2.4 Application of MSFLA in Power Warehouse Cargo Transportation 3 Experimental Results and Analysis 4 Conclusions References A Survey of Class Activation Mapping for the Interpretability of Convolution Neural Networks 1 Introduction 2 Class Activation Mapping (CAM) 2.1 Pros and Cons of CAM 3 Grad-CAM 3.1 Pros and Cons of Grad-CAM 4 Related Works 4.1 Grad-CAM++ 4.2 Score-CAM 4.3 LayerCAM 5 Discussion 5.1 Significance of CAM-Related Methods 5.2 Challenges Raised by CAM-Related Methods 5.3 Future Research 6 Conclusion References Robust Multi-person Reconstruction in Right Spatial Arrangement from In-the-Wild Scenes 1 Introduction 2 Body Parametric Representation 3 Human Reconstruction Framework 3.1 Pose-Depth Feature Extractor 3.2 SMPL Parametric Regressor 3.3 Parametric Refine Regressor 3.4 Loss Functions 3.5 Implementation Details 4 Experimental Results 4.1 Qualitative Comparisons 4.2 Quantitative Comparison 4.3 Ablation Experiment 5 Conclusions References Research on the Curriculum System of Electronic Information Engineering for the Certification of Engineering Education 1 Introduction 2 Introduction of Electronic Information Engineering 3 Design Requirements of Curriculum System 4 The Curriculum System 5 Conclusion References Multimedia and Communication Networks An S Band Antenna Using Meta-surface for Satellite TT & C Test 1 Introduction 2 Design Structure and Mentality of the Antenna 3 The Characteristics and Applications of the Antenna 4 Conclusions References Design and Implementation of a Test and Verification System for Spaceborne Synthetic Aperture Radar 1 Introduction 2 System Design 3 Design of Echo Simulator 3.1 Hardware Design 3.2 Software Design 4 Design of Quick-Look System 4.1 Hardware Design 4.2 Software Design 5 Application 6 Conclusion References An Optimized Scheme for Telecommand Transmission 1 Introduction 2 Design of Telecommand Interface 2.1 Hardware Design 2.2 Software Design 3 Traditional Scheme for Telecommand Transmission 4 Optimized Scheme for Telecommand Transmission 5 Conclusion References Transmission Efficiency Improvement of Ka-Band VCM Satellite-to-Ground Data Transmission System of LEO Remote Sensing Satellite Based on DVB-S2X 1 Introduction 2 Simulation Parameters 2.1 Link Parameters 2.2 Modulation and Coding Mode Selection 3 Simulation and Evaluation 3.1 Definition of Transmission Efficiency Factor 3.2 Link Availability 3.3 Simulation Results of Transmission Efficiency Factor 3.4 Transmission Efficiency Improvement 4 Conclusions References Anti-interference Control for On-Orbit Servicing Spacecraft Formation Under Communication Resource Limitation 1 Introduction 2 System Model 3 Extended State Observer Design 4 Event-Triggered Adaptive Control Base on ESO 5 Simulation and Analysis 6 Conclusion References FPGA-Based High-Speed Remote Sensing Satellite Image Data Transmission System 1 Introduction 2 Design and Research of High-Speed Remote Sensing Satellite Image Data Transmission System Based on Fpga 2.1 Image Features 2.2 The Principle of Ship Target Detection 2.3 Selection Principle of Characteristic Parameters 2.4 Remote Sensing Image Compression Algorithm 3 Experimental Research on High Speed Remote Sensing Satellite Image Data Transmission System Based on FPGA 3.1 FPGA Design Ideas 3.2 FPGA Engineering Development Process 3.3 Cloud Detection Technology in Remote Sensing Cloud Images 4 Experiment Analysis of High Speed Remote Sensing Satellite Image Data Transmission System Based on FPGA 4.1 Usage of Device Resources 4.2 Comparison of Different Lossless Compression Algorithms for Binary Cloud Mask 5 Conclusions References Application of Frequency Domain Filtering in Edge Detection 1 Introduction 2 Method Principle 2.1 Image Frequency Domain 2.2 Fourier Transform 2.3 Canny Operator and Otsu Dual-Threshold Segmentation 3 Experiment and Analysis 3.1 The Effect of Frequency Domain Filtering on Edge Detection 3.2 Frequency Domain Filters for Specific Problems 4 Summary References Research on the Anti-interference of a Satellite Telecommand Interface 1 Introduction 2 Description of Satellite Interference 3 Satellite Telecommand Operation Process 4 Anti-interference Analysis of Telecommand Load 4.1 Anti-interference Analysis of Relay Telecommand Load 4.2 Anti-interference Analysis of Optocoupler Telecommand Load 4.3 Anti-interference Analysis of Other Telecommand Load 5 Conclusion References Intelligent Propagation Prediction Model for Wireless Radio Channel Based on CNN 1 Introduction 2 Feature Engineering of the Wireless Radio Channel 2.1 Empirical Models of Wireless Radio Channel 2.2 Features Design and Selection of Wireless Radio Channel 3 CNN-Based Wireless Intelligent Propagation Model 3.1 Data Preprocessing 3.2 CNN-Based Wireless Intelligent Propagation Model 4 Simulation Results 5 Conclusion References Research on Application Efficiency Analysis Method of Remote Sensing Satellite for Emergency 1 Introduction 2 Analysis on Influencing Factors of Remote Sensing Satellite Application Efficiency 2.1 Influencing Factors of Routine Application Efficiency 2.2 Influencing Factors of Emergency Application Efficiency 2.3 System Comprehensive Efficiency 3 Efficiency Analysis Method of Remote Sensing Satellite for Emergency Application 3.1 Quantification of Efficiency Influencing Factors 3.2 Confirmation of Efficiency Influencing Factors 4 Application Effectiveness Evaluation Test 4.1 Simulation Scene Settings 4.2 Satellite Application Efficiency Calculation 5 Conclusions References Research on Blind Restoration Algorithm of Motion Blurred Remote Sensing Image 1 Introduction 2 Image Deterioration Model 2.1 Description of Deterioration Model 2.2 Remote Sensing Image Motion Degradation Model 3 Remote Sensing Image Restoration Method 3.1 Estimation of Motion Angle Based on Radon Transform 3.2 Estimation of Blur Scale Based on Autocorrelation Function 3.3 Wiener Filter Restoration Model 4 Experimental Results 4.1 Comparative Experiment 4.2 Statistical Experiment 5 Conclusions References A Fast Algorithm of CU Block Division Based on Frequency Domain on VVC 1 Overview 2 Basic Theory 2.1 VVC Coding Framework 2.2 DCT Transformation 2.3 Main Idea 3 Main Work and Contribution 3.1 Determine the Eigenvalues of the Current Block 3.2 Determining the Coefficient R Threshold 3.3 Further Optimization 4 Experiment Result 5 Conclusion References Optimization of AVS3 Intra Derived-Tree Mode Algorithm Based on DCT Coefficients 1 Introduction 2 Proposed Algorithm 2.1 DCT and Its Coefficients 2.2 Proposed Algorithm 3 Experimental Results 4 Conclusion References Integrated Sensing and Communications with OTFS: Application in V2I Communications 1 Introduction 2 Related Work 2.1 Radar-Based Predictive Beamforming 2.2 Vision-Based Predictive Beamforming 2.3 OTFS-Based Predictive Beamforming 3 System Model 3.1 Signal Model 3.2 Communication Model 4 Parameter Estimation and Prediction 4.1 Parameter Estimation 4.2 Prediction of Location, Distance and Angle 5 Simulations 5.1 Performance of Parameters Estimation 5.2 Performance of Downlink Communication 6 Conclusion References Space Technology Session 1 Fault Analysis and Evaluation of Control Moment Gyroscope on Orbit 1 Preface 2 Fault Analysis on Orbit 2.1 Abnormal Increasing of Local Impedance in Low Speed Frame Conductive Ring 2.2 Friction Moment of Bearing Increases Due to Wear of High Speed Bearing Cage 3 Evaluation Method for Performance of CMG 4 Conclusion References Precision Orbit Determination for LEO Based on BDS Navigation Data 1 Introduction 2 Dynamic Compensation Orbit Determination 3 Perturbation Model 4 Data Analysis 5 Summary References Research and Practice of Electrostatic Grounding Technology of Aerospace Electronic Products Based on Intelligent Active Protection Concept 1 Hazards and Loss of ESD to Electronic Products 2 Development Overview 3 Key Points and Difficulties 3.1 Identification of Protection Requirements of Static-Sensitive Components of Xi’an Branch 3.2 Identification of Protection of Electrostatic Sensitive Electronic Products 3.3 Identification of Static Electricity Prevention and Control of Insulated Articles and Isolated Conductors 4 How to Establish Electrostatic Grounding Measures for Aerospace Electronic Products Based on the Concept of Intelligent Active Protection 4.1 Innovate the Anti-static Grounding Monitoring Technology to Improve 4.2 Use Anti-static Door Machine Chain Detection Technical Measures to Strengthen the Active Control Ability of Static Electricity Protection 5 Actual Effect 5.1 Cure and Form a Complete Anti-static Grounding Management System 5.2 Help to Build a National “Five-Star” Demonstration Site, and Improve the Active Control Ability of EPA 5.3 The Quality Problem of Static Damage Products in Xi’an Branch Has Decreased Significantly 6 Conclusion References Investigation on Feasibility of Covert TT&C Scheme Using Satellite Payload Channel 1 Introduction 2 Covert TT&C Scheme 2.1 Interference of Repeater Signal on TT&C Signal 2.2 Interference of TT&C Signal on Repeater Signal 3 Model Validation and Discussion 4 Conclusion References A Satellite Imaging Stability Monitoring Method Based on Lunar Calibration Technology 1 Introduction 2 Key Technology of Lunar Calibration 2.1 The Imaging Window of Lunar Calibration 2.2 Satellite Attitude for Lunar Calibration 2.3 Imaging Parameters of the Camera 3 Imaging Stability Monitoring Experiment 3.1 Experimental Condition 3.2 Lunar Calibration 3.3 Imaging Stability Monitoring 4 Conclusion References Design and Verification of mK Temperature Fluctuation Control for Gravity Gradiometer 1 Introduction 2 The Gradiometer 3 Methods of Thermal Control Design for the Gradiometer 3.1 Build a Component-Level Resistance-Capacitance (RC) Filtering Network 3.2 System-Level Thermal Insulation Design 3.3 High-Precision Multi-stage Active Thermal Control Method 3.4 Control Method of Cable Heat Loss 4 Thermal Analysis 4.1 The Thermal Mathematical Model and Meshing 4.2 Thermal Performance 5 Thermal Balance Test 5.1 Overview 5.2 Analysis of Test Results 6 Conclusions References A Perigee Orbit Change Method for Geostationary Satellite 1 Introduction 2 Geostationary Orbit Satellite Working Condition Analysis 2.1 Satellite Profile 2.2 Routine Working Process of Apogee Orbit Change 3 Perigee Orbit Change Control Method 4 Perigee Orbit Change Effect 5 Conclusion References Optimal Design of Power Drive Unit Layout Based on Improved Discrete Particle Swarm Optimization 1 Introduction 2 Establishment of PDU Layout Optimization Model 3 Solution of PDU Optimal Layout Model 3.1 Description of Discrete Particle Swarm Optimization 3.2 Algorithm Improvement Strategies 4 Application Case Analysis 5 Conclusion References Preliminary Discussion on the Application of Digital Thread in the Model-Based Spacecraft Development 1 Introduction 2 Analysis of the Model-Based Spacecraft Development Mode 3 The Digital Thread and Its Construction Method 3.1 Overview of the Digital Thread 3.2 The Construction Method of Spacecraft Digital Thread 4 Realization and Application of Digital Thread 4.1 Realization of Digital Thread in the PLM System 4.2 The Construction Practice of Spacecraft Digital Thread 5 Conclusion References Study on the Construction Method of Spacecraft System Model Based on Meta-model 1 Introduction 2 The Construction Method of Spacecraft Domain Meta-model 2.1 Meta Object Facility 2.2 Spacecraft Ontology Concept Modeling 2.3 The Customization of Domain Metal-Model on Modeling Tools 3 The Realization of Spacecraft System Model Based on Domain Meta-model 3.1 Ontology Modeling 3.2 View Template Modeling 4 Case Study 5 Conclusion References The Design and Implementation of Magnetic Control of Ultra Quiet Control System in Gravity Satellite 1 Introduction 2 Principle of Designing Magnetic Control of Ultra Quiet Control System with High Precision 3 Measurement Technology of Magnetometer with High Precision 3.1 Temperature Compensation Technology of Magnetometer 3.2 Whole Satellite Compensation Technology of Magnetometer 4 Magnetic Torquer Control Technology with High Precision 4.1 Induced Magnetic Moment Control of Magnetic Torquer Body 4.2 Driving Circuit Technology of Magnetic Torquer with High Precision 5 Flight Results of Magnetic Control in Orbit 6 Conclusion References Intercomparison of On-Orbit Consistency of Radiometric Calibration Between Two Sensor Calibration Spectrometers of HY Satellite 1 Introduction 2 Onboard Calibration of HY-1C(1D)/SCS 2.1 Calibration Principle of SCS 2.2 Cross Calibration Method Based on Spectral Reconstruction 3 Experiment and Analysis 3.1 SCS and MODIS 3.2 HY-1C/SCS and HY-1D/SCS 4 Conclusion References Loose Formation Keeping Control for Low-Earth Orbit Satellite Cluster Considering the Interaction Between Cluster Satellites 1 Introduction 2 Relative Motion Description of Satellite Cluster 3 Relative Distance Maintenance in the Along-Track Direction 4 Collision Avoidance in the xz Plane 5 Relative Motion Amplitude Suppression in the Cross-Track Direction 6 Simulation Results 7 Conclusions References Research on Data Fusion Architecture of GNC Subsystem of China Space Station 1 Introduction 2 Data Fusion Related Research 3 Data Fusion Architecture 3.1 Data Pool 3.2 Communication Layer Data Fusion 3.3 Resolution Layer Data Fusion 3.4 Algorithm Layer Data Fusion 4 Application Validation 5 Conclusion References Application in Emergency Tasks Schedule with the GFDM-1 Satellite 1 Introduction 2 Emergency Task Schedule Process Design and Mode Selection 3 Test Results and Analysis 3.1 High Priority Tasks Replace Low Priority Tasks 3.2 Effect of Avoiding Cloud Cover by Multi-angle Imaging 3.3 Area Extraction Data Processing On-Board to Accelerate Data Delivery to Users 3.4 Data Transmission to Relay Satellites 4 Conclusion References Emergency Scheduling Process Design for ZY303 Satellite 1 Introduction 2 Problem Formulation and Research Background 3 Mission Scheduling Model and Task Insertion Strategy 3.1 Emergency Need Analysis Module 3.2 Emergency Scheduling Strategy Design 3.3 Mission Uploading Module 4 Conclusion References Research on the Application of TDRSS for Manned Spacecraft 1 Introduction 2 Characteristics of Ma