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Docking navigation method for UAV autonomous aerial refueling

science China(Information sciences) 2019年第1期62卷 29-44页

作者： Delin LUO Jiang SHAO Yang XU Jinpeng ZHANG School of Aerospace Engineering Xiamen University China Airborne Missile Academy Aviation Key Laboratory of Science Technology on Airborne Guided Weapon

In this paper, a docking navigation method for autonomous aerial refueling(AAR) of unmanned aerial vehicles(UAVs) based on a binocular vision system(BVS) is proposed. A BVS simulation platform is built for simulation research purposes. First, unnecessary scene information in the image is filtered through green light-emitting diodes(LEDs) and filters. Then the image is processed via graying, binarization, and median filtering to highlight the connected area of the LED in the image. Subsequently, the center of mass of the connected area is selected as the feature point(FP), and the FPs are described using an improved Haar wavelet transform. The multidimensional description vector of FP is obtained and matched. Finally,the position and pose of the refueling cone sleeve are estimated. Simulation results show the effectiveness of the presented AAR navigation method.

关键词： autonomous aerial refueling AAR position and pose estimation improved Haar wavelet transform IHWT binocular vision system BVS BVS simulation platform

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Cooperative sliding-mode guidance law for active protection 41

Cooperative sliding-mode guidance law for active protection

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第41届中国控制会议

作者： HUA Wen-hua ZHANG Jin-peng China Airborne Missile Academy Aviation Key Laboratory of Science and Technology on Airborne Guided Weapons

ISBN: (数字)9789887581536

ISBN: (纸本)9781665482561

As compared with the attacking missile,the aircraft had the disadvantages of flight speed and *** improve the survivability,the aircraft could launch a defending missile to intercept the attacker and correspondingly,a cooperative guidance law of defending missile was presented based on adaptive sliding-mode *** guidance law was a kind of line of sight(LoS) guidance approach in essence,which guided the defending missile to locate inside the LoS between the aircraft and the attacking missile for active *** simulations show that this guidance law has the advantages of maneuvering performance and intercepting performance compared to the proportional navigation because of the cooperation with the aircraft and has strong robustness to the speed variations of the three bodies and the maneuver of the attacking missile.

关键词： guidance law adaptive sliding-mode control cooperation guidance line of sight guidance

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Maximal admissible mode decision delay in terminal guidance

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Chinese Journal of Aeronautics 2019年第8期32卷 1959-1966页

作者： Shengwen XIANG Tiancheng LI Wei CHEN Hongqi FAN Qiang FU National Key Laboratory of Science and Technology on ATR College of Electronic ScienceNational University of Defense TechnologyChangsha 410073China School of Science University of SalamancaSalamanca 37008Spain Aviation Key Laboratory of Science and Technology on Airborne Guided Weapons China Airborne Missile AcademyLuoyang 471009China

Mode decision-maker is a critical component in the logic-based Integrated Estimation and Guidance(IEG) system. For the best possible estimation and guidance performance, the mode decision delay of the mode decision-maker should be limited to a range as small as possible. This paper presents a numerical method for computing the maximal admissible mode decision delay that varies with time-to-go. Particular attention has been paid to highly maneuvering target interception in terminal guidance. The results of this research offer useful guidelines for the design of the mode decision-maker in IEG systems.

关键词： Highly maneuvering target interception Integrated Estimation and Guidance Maximal admissible mode decision delay Mode decision-maker Numerical methods

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Service-Oriented Intelligent Avionics System Architecture 10th

Service-Oriented Intelligent Avionics System Architecture

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10th Chinese Society of Aeronautics and Astronautics Youth Forum, 2022

作者： Yan, Zhao Pengcheng, Wen Linting, Bai Na, Wu Xi’an Aeronautics Computing Technique Research Institute AVIC Xi’an710068 China Aviation Key Laboratory of Science and Technology On Airborne and Missile-Borne Computer Xi’an710065 China

ISBN: (纸本)9789811976513

As the core component of the aircraft, the avionics system has gone through the independent, federated, and integrated architecture to deal with the increasingly complex air combat scenarios. With the development of artificial intelligence and integrated circuits, avionics systems should be prepared to equip a large number of intelligent applications, which contributes to more effectively completing the military missions. In addition, the next generation of avionics systems need to be more flexible, and thus can be conveniently updated and allow intelligent applications effectively communicate with each other. Therefore, to achieve a more intelligent and flexible avionics system, this paper proposes a novel Service-oriented Intelligent Avionics System Architecture, named as SIASA. With such a service-oriented architecture, SIASA provides a flexible software platform by treating intelligent applications as services. Specifically, the proposed SIASA consists of seven layers, i.e., airborne intelligent chip layer, abstraction layer, hashrate abstraction layer, equipment abstraction layer, airborne service capability layer, airborne intelligent application atomic service layer, and airborne intelligent application layer. With these layers, SIASA well supports intelligent applications and is able to make effective and efficient updates. Furthermore, SIASA also supports more advanced scenarios, including airborne OTA, drag-and-drop software development, and system intelligence. © 2023, Chinese Aeronautical Society.

关键词： Artificial intelligence

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UAV Swarm Coordination Based on Intelligent Microservices 6th

UAV Swarm Coordination Based on Intelligent Microservices

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6th China Aeronautical science and technology Conference, CASTC 2023

作者： Zhao, Yan Wen, Pengcheng Bai, Linting Wang, Bin Xi’an Aeronautics Computing Technique Research Institute AVIC Xi’an710068 China Aviation Key Laboratory of Science and Technology on Airborne and Missile-Borne Computer Xi’an710065 China

ISBN: (纸本)9789819988631

The development of unmanned aerial vehicle (UAV) swarm technology has opened up new possibilities for various applications, such as search and rescue, precision agriculture, and surveillance. However, the coordination of a large-scale UAV swarm is a complex task that requires intelligent, efficient, and scalable techniques. In recent years, the emergence of microservice architecture has provided a promising approach to addressing the challenges of UAV swarm coordination with intelligent techniques. In this paper, we first provide scenario analyses to demonstrate how intelligent microservices allow UAV swarm coordination more effective and efficient. Then, we present key technologies for UAV swarm coordination based on intelligent microservices. Specifically, we introduce our solutions to address the three main challenges, i.e., service split, service registration and discovery, and security and privacy in implementing the intelligent microservice-based UAV swarm coordination system. Finally, we present the possible future directions of this research area, i.e., optimization of computing resource allocation, integration of advanced AI algorithm, and human-UAV interaction. © 2024, Chinese Society of Aeronautics and Astronautics.

关键词： Antennas

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Compile runtime system technology for airborne high-performance heterogeneous computing 2

Compile runtime system technology for airborne high-performa...

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2nd International Conference on Electronic Information Engineering and computer Communication, EIECC 2022

作者： Gao, Han Xu, Ling Zhao, Yixuan Yan, Tanbao Aviation Key Laboratory of Science and Technology on Airborene and Missile-borne Computer.Xi'an Aeronautics Computing Technology Research Institute Xi'an China

ISBN: (纸本)9781510663121

Most tasks in airborne scenarios are composed of neural networks (NN) and non-NN tasks. On the one hand, Deep neural networks (DNNs) have become the mainstream method of AI task processing. DNNs is accompanied by a large number of complex tensor calculations, as well as network delays and data privacy risks caused by using the cloud to process data. The combination of dedicated AI hardware accelerators and edge computing has become a new solution. On the other hand, dedicated AI hardware accelerators cannot efficiently handle non-NN class tasks (such as signal processing, control flow, etc.), so onboard systems need to design new hardware, complete compiler stacks, and runtime systems to handle non-NN class tasks. In order to effectively deal with multiple tasks in the airborne environment, the airborne computing system needs to establish a set of unified compilation and runtime system, which can optimize multiple tasks and be deployed on the heterogeneous computing platform to achieve "one compilation, multiple deployment". This paper analyzes the development of compiler and runtime systems at home and abroad, and compares the advantages and disadvantages of different technologies. Finally, this paper discusses the application scenarios of the compilation system and runtime in the airborne environment and the technical directions that need to be breakthroughs in the future, so as to provide guidance for the development of the airborne intelligent compilation and runtime system. © 2023 SPIE.

关键词： Deep neural networks

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Performance Evaluation of Intelligent Computing Platform for Air-Combat Decision Algorithm 24

Performance Evaluation of Intelligent Computing Platform for...

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24th IEEE International Conference on High Performance Computing and Communications, 8th IEEE International Conference on Data science and Systems, 20th IEEE International Conference on Smart City and 8th IEEE International Conference on Dependability in Sensor, Cloud and Big Data Systems and Application, HPCC/DSS/SmartCity/DependSys 2022

作者： Xu, Kangfa Bai, Linting Wen, Pengcheng Niu, Wensheng Xi'an Aeronautics Computing Technique Research Institute Avic Aviation Key Laboratory of Science and Technology on Airborne and Missle-borne Computer Xi'an China

ISBN: (纸本)9798350319934

At present, some performance evaluation methods of intelligent computing platform oriented to air combat decision algorithm have problems such as complex evaluation index system construction, poor evaluation accuracy, difficult to verify the effectiveness of evaluation conclusions and lack of real-time performance. Based on this, this paper establishes the intelligent computing platform performance evaluation index set according to the intelligent decision class algorithm structure, platform compatibility and platform hardware characteristics. Cloud center of gravity method and consistent weighting method are selected as the evaluation algorithm and weighting algorithm respectively to carry out real-time evaluation and form the initial evaluation conclusion. Besides, the 'evaluation confidence' is used to judge the validity of the evaluation conclusion and whether a second evaluation is needed to form the final conclusion and the simulation environment of air combat is used to verify the accuracy of the evaluation results. This method avoids the randomness and uncertainty of the traditional evaluation methods, ensures the real-time and effectiveness of the evaluation results, significantly improves the accuracy, and can truly and effectively reflect the operational performance of the computing platform equipped with the air-combat decision algorithm. © 2022 IEEE.

关键词： Cloud computing

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ISAR Imaging of Targets with Complex Motions Based on the Non-uniformed Sampled Integrated Modified Chirp Rate-Quadratic Chirp Rate Distribution 26

ISAR Imaging of Targets with Complex Motions Based on the No...

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26th ACIS International Winter Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, SNPD-Winter 2023

作者： Sun, Zongyang Bai, Linting Xu, Kangfa Xi'an Aeronautics Computing Technique Research Institute Avic Aviation Key Laboratory of Science and Technology on Airborne and Missle-borne Computer Xi'an China

ISBN: (纸本)9798350345865

This paper proposes a new ISAR algorithm for obtaining well-focused images of targets with complex motions in low signal-to-noise ratio (SNR) environments. The algorithm models the echo signals of targets with complex motions as cubic phase signals (CPS) after motion compensations and uses the Non-uniformed Sampled Integrated Modified Chirp Rate-Quadratic Chirp Rate Distribution (NIM-CRQCRD) to estimate CPS parameters. The proposed algorithm compensates the echo signals using the parameter estimates and generates ISAR images of targets with complex motions. Simulation results show that the proposed algorithm has superior anti-noise performance. © 2023 IEEE.

关键词： Parameter estimation

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Design of airborne Bus Communication Platform based on Isomorphic Dual Redundancy Channels 7

Design of Airborne Bus Communication Platform based on Isomo...

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7th International Conference on Electrical, Mechanical and computer Engineering, ICEMCE 2023

作者： Wang, Xiaohang Xu, Kangfa Xu, Yaxing Xi'an Aeronautics Computing Technique Research Institute Avic Aviation Key Laboratory of Science and Technology on Airborne and Missle-borne Computer Xi'an China

ISBN: (纸本)9798350382877

In order to solve the problem of low reliability of airborne bus communication platforms under limited volume, weight, power consumption, and computing power in airborne environments, the design scheme of the airborne bus communication platform was completed by demonstrating the software and hardware architecture of isomorphic dual redundancy channels. This design scheme first analyzes the usage scenarios and requirements indicators of the airborne bus communication platform, standardizes the design process based on the analysis indicators, and then designs a hardware architecture based on isomorphic dual redundancy channels according to the requirements and application environment of the design scheme. Finally, it focuses on the data interaction characteristics between the airborne product and the upper computer, Complete the design of dual redundancy data intelligent control software from the perspective of dual channel data flow and channel fault switching. Simulation examples show that this solution effectively solves the problems of high fault reporting rate and excessive resource redundancy in traditional equipment, and significantly improves the reliability of massive data transmission and reception in airborne environments. © 2023 IEEE.

关键词： Redundancy

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Modeling and Simulation of Infrared Properties of Aircraft Skin at Low Temperature 2

Modeling and Simulation of Infrared Properties of Aircraft S...

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2nd International Conference on Computing, Communication, Perception and Quantum technology, CCPQT 2023

作者： Xiao, Peng Wang, Xinchao Tai, Hongbing Yin, Lijuan Zhang, Fan Zhao, Songqing Harbin Institute of Technology School of Instrumentation Science and Engineering Harbin China China Airborne Missile Academy Luoyang China China Airborne Missile Academy Aviation Key Laboratory of Science and Technology on Airborne Guided Weapons Luoyang China

ISBN: (纸本)9798350342697

The infrared radiation characteristics of aircraft skin is an important research content for evaluating and improving the infrared stealth performance of aircraft, and this paper proposes an energy-based emissivity measurement method for the surface skin coating material of aircraft in low temperature environment. The geometric model of a typical aircraft is established by CATIA software, the heat flow of solar radiation is obtained by the inverse Monte Carlo method, and the three-dimensional temperature field of the aircraft as well as the infrared emissivity field in the 3~5μm and 8~14μm bands are simulated by the method of control variables. The relationship between the solar radiation and the infrared radiation characteristics of the aircraft surface as well as the influence of flight altitude on the infrared radiation performance are obtained through simulation and analysis, and the research in this paper provides important technical and theoretical support for the infrared stealth design of aircraft. © 2023 IEEE.

关键词： Finite element method

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