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4th IEEE International Conference on Power, Intelligent Computing and Systems, ICPICS 2022

作者： Ma, Chao Zou, Jie Lei, Dawei Ye, Xigui Zang, Shaofei Ma, Jianwei School of Information Engineering Henan University of Science and Technology Science Technology on Electro-optic Control Laboratory AVIC Optronics Luoyang China Science and Technology on Electro-optic Control Laboratory AVIC Optronics Luoyang China Henan University of Science and Technology School of Information Engineering Luoyang China

ISBN: (数字)9781665467735

ISBN: (纸本)9781665467735

Wooden poles are deployed for decades. To inspect the poles, visual inspection by human experts is generally adopted. However, poles are mostly deployed in areas with bad traffic conditions, it is hard to access them. Furthermore, human inspectors tend to get tired, which lowers the inspection accuracy. In this paper, we present an unmanned aerial vehicle (UAV) based system for automatic wooden pole inspection. First, we captured the pole images by using a drone with a high resolution camera, totally we captured 600 pole images. Second, we proposed a encoder-decoder based neural network that can segment poles and cracks with high accuracy. Finally, we designed a processing scheme that can give the location and direction of each crack with high accuracy. © 2022 IEEE.

关键词： Poles

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Anchor-Free and Pixel-Wise Convolution for Visual Tracking

Anchor-Free and Pixel-Wise Convolution for Visual Tracking

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International Conference on Guidance, Navigation and control, ICGNC 2022

作者： Luo, Yihang Zhao, Zhenyu Hu, Yinji Jie, Feiran Science and Technology on Electro-Optical Control Laboratory Luoyang471000 China Luoyang Institute of Electro-Optic Equipment AVIC Luoyang471000 China

ISBN: (纸本)9789811966125

Most of the existing trackers usually rely on a multi-scale searching schemes or predefined anchor boxes to accurately estimate the scale and aspect ratio of objects. However, this operation requires tedious and heuristic configurations to obtain ideal results, which is inefficiency. To solve this problem, we introduce an anchor-free and pixel-wise convolution algorithm (named SiamAPF). SiamAPF transforms the tracking problem into a classification problem and a regression problem, and directly performs classification and bounding box regression on the target in fully convolutional network. The proposed network architecture is simple, and does not need to set responsible hyper-parameters. Meanwhile, it can improve the network's ability to express spatial information through pixel-wise convolution. It achieves state-of-the-art performance on the test datasets OTB100, UAV123 and runs at 50 FPS. In order to achieve better engineering applications, we successfully deployed SiamAPF under the NVIDIA Jetson Xavier hardware platform and recorded video for verification. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Convolution

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Short-term trajectory prediction of aerial target based on LSTM model

Short-term trajectory prediction of aerial target based on L...

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2021 International Conference on Computational Modeling, Simulation, and Data Analysis, CMSDA 2021

作者： Chen, Yun Zou, Jie Wu, Mengjie Science and Technology on Electro-optic Control Laboratory Luoyang Institute of Electro-optical Equipment of AVIC Luoyang China

ISBN: (纸本)9781510651968

When the radar is tracking an air target, there is a short-term interruption of the track. The accurate prediction of the target track can help improve the accuracy of the track association. In response to the problem of low calculation accuracy of traditional track prediction algorithms, this article introduces and adopts a long short-term memory algorithm (Long Short - Term Memory) track prediction method. Use data to train the model, and use the mean square error (MSE) as an evaluation indicator to predict the future location of the target. The final simulation test results show that the algorithm can use the changing law of the air target's movement state to predict the target's movement state in a certain time in the future, which demonstrates the feasibility of the proposed algorithm in the problem of interrupted track prediction. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Long short-term memory

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Cooperative attack–defense decision-making of multi-UAV using satisficing decision-enhanced wolf pack search algorithm

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Soft Computing 2024年第17-18期28卷 9575-9586页

作者： Zhou, Tongle Chen, Mou Wang, Yuhui Zhu, Ronggang Yang, Chenguang College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing211106 China Key Laboratory of Avionics System Integrated Technology Shanghai200241 China Science and Technology on Electro-optic Control Laboratory Luoyang Institute of Electro-Optical Equipment of Avic Luoyang471000 China Bristol Robotics Laboratory University of the West of England BristolBS16 1QY United Kingdom

Unmanned aerial vehicles (UAVs) have shown their superiority for applications in complicated military missions. A cooperative attack–defense decision-making method based on satisficing decision-enhanced wolf pack search (SDEWPS) algorithm is developed for multi-UAV air combat in this paper. Firstly, the multi-UAV air combat mathematical model is provided and the attack–defense decision-making constraints are defined. Besides the traditional air combat situation, the capability of UAVs and target information including target type and target intention are all considered in this paper to establish the air combat superiority function. Then, the wolf pack search (WPS) algorithm is used to solve the attack decision problem. To improve efficiency, the satisficing decision theory is employed to enhance the WPS to obtain the satisficing solution rather than optimal solution. The simulation results show that the developed method can realize the cooperative attack decision-making. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Decision making

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Accuracy Analysis of Multi-point Ranging Target Localization for UAV with electro-optical Platform

Accuracy Analysis of Multi-point Ranging Target Localization...

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International Conference on Guidance, Navigation and control, ICGNC 2020

作者： Zhang, Yongsheng Zou, Jie Chen, Shaodong Guo, Limin Science and Technology on Electro-Optic Control Laboratory Luoyang China Luoyang Institute of Electro-Optical Equipment of AVIC Luoyang China

ISBN: (纸本)9789811581540

electro-optical platform of unmanned aerial vehicle (UAV) has been widely used for target localization. Compared with the traditional single-point measurement method using the electro-optical platform, multi-point ranging target localization reduces the adverse effects caused by the measurement errors of the three attitude angles of UAV, the pitch angle and the azimuth angle of the electro-optical platform, but brings the factor of selecting ranging points which will affect target localization accuracy. This paper first gives the principle of multi-point ranging target localization of the electro-optical platform, and then obtains the influencing factors of target localization accuracy. Using Monte Carlo method, the relationship between factors such as latitude and longitude error, height error, ranging error, number of ranging points, horizontal distribution of ranging points is analyzed systematically. Based on this, a strategy for improving the localization accuracy is given, which has certain reference significance for the implementation of multi-point ranging target localization of UAV with electro-optical platform. © 2022, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Monte Carlo methods

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Dynamic Route Planning for UAV Using Receding Horizon control Towards Moving Target

Dynamic Route Planning for UAV Using Receding Horizon Contro...

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International Conference on Guidance, Navigation and control, ICGNC 2020

作者： Zhang, Yongsheng He, Jianliang Gao, Ruizhou Science and Technology on Electro-Optic Control Laboratory Luoyang China Luoyang Institute of Electro-Optical Equipment of AVIC Luoyang China

ISBN: (纸本)9789811581540

Aiming at the task of detecting moving targets for unmanned aerial vehicle (UAV), this paper proposes a dynamic route planning algorithm based on receding horizon control. In order to satisfy the flight dynamics constraints of the planned trajectory, the quadratic Bezier curve is introduced. In view of the weak detection and processing capabilities of UAV, receding horizon control is used for implementation planning to reduce the computational burden of UAV. Considering the characteristics of the moving target, the threat of the mission area, the minimum turn radius of UAV, and the connection of path segments, the optimization model is established with the shortest range as the optimization objective. According to the characteristics of the model, the sequence quadratic program (SQP) method is selected to solve the problem. In order to verify the effectiveness of the algorithm, three ways of moving targets are designed. Simulation results show that the route generated by this method can excellently avoid threats and reach the moving target, and the route is smooth enough for the actual flight. © 2022, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Unmanned aerial vehicles (UAV)

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Research and Precision Analysis of Handover Guidance Mode for Two-Aircraft

Research and Precision Analysis of Handover Guidance Mode fo...

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International Conference on Guidance, Navigation and control, ICGNC 2020

作者： Fan, Xinlei Wang, Xiangpo Zou, Jie Zhang, Yuejie Science and Technology on Electro-Optic Control Laboratory Luoyang China Luoyang Institute of Electro-Optical Equipment of AVIC Luoyang China

ISBN: (纸本)9789811581540

This article analyzes the combat process of the handover guidance attack mode, and sorts out all relevant factors that may affect the accuracy of the target information of the fire control solution, the accuracy of the attack target solution, and the final attack effect of the air-to-air missile, and using the established formation coordination air-to-air attack accuracy simulation analysis software, the Monte Carlo method was used to simulate and analyze the influence factors of attack accuracy in the handover-guided combat mode. The results have great engineering application value for evaluating the attack accuracy of the handover-guided combat mode. © 2022, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Monte Carlo methods

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Design of a transmission confocal athermal optical system for LWIR and MWIR 9

Design of a transmission confocal athermal optical system fo...

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9th Symposium on Novel Photoelectronic Detection technology and Applications

作者： Li, Shao-Nan Luo, Jin-Ping Zhang, Dan-Dan Wang, Xiao Xie, Fei Science and Technology on Electro-optic Control Laboratory Luoyang471000 China Luoyang Institute of Electro-optical Equipment of AVIC Luoyang471000 China The High School Affilicated to University of Science＆Technology Henan Luoyang471000 China

ISBN: (纸本)9781510664432

There is a strong demand for lightweight, miniaturization and non heating in the design of airborne infrared dual band optical system. A transmissive infrared optical system is introduced, which can meet the confocal requirements of medium wave infrared and long wave infrared light, and can realize non heating design in the temperature range of - 55 ℃~+71 ℃. By deeply analyzing the non thermal mathematical and physical core, combining the difference of dispersion coefficient and thermal difference coefficient of different materials, using germanium, zinc sulfide and zinc selenide with appropriate positive and negative optical powers, a common optical path structure of the secondary imaging optical system with a "4+4" configuration is designed, with a focal length of 200mm and a F number of 2;Indium steel and aluminum are used for the base and the mirror tube, and the difference of thermal expansion coefficient between the two materials is used to achieve heat dissipation difference. This design method can realize the design of dual band non thermal optical system at a lower cost. Its transmissivity, distortion, MTF, cold reflection and other indicators meet the design requirements. The optical system achieves the imaging effect of high transmissivity of medium and long wavelength infrared light. © 2023 SPIE.

关键词： Design

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Detectability of onboard infrared detection system to hypersonic vehicles

Detectability of onboard infrared detection system to hypers...

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2022 Conference on Infrared, Millimeter, Terahertz Waves and Applications, IMT 2022

作者： Li, Shao-Nan Qi, Tao Zhang, Peng Zhang, Dan-Dan Zhai, Yuanlin Science and Technology on Electro-Optic Control Laboratory Luoyang471000 China Luoyang Institute of Electro-Optical Equipment of AVIC Luoyang471000 China The High School Affilicated to University of Science&Technology Henan Luoyang471000 China

ISBN: (纸本)9781510662476

Hypersonic target in near space put forward new challenge to the early warning *** airborne IR early warning system is an important part of air-based infrared detection system to hypersonic vehicle, which will play a part in the preparedness of space echeloms of missiles warning *** infrared radiation strength of near space hypersonic vehicle is *** utilized MODTRAN software to simulate the atmospheric transmission rate under different *** Hudsons classic distance formula is used to calculated the caliber. It disscussed the feasibility on infrared detection system to hypersonic *** designed an onboard infrared detection system to hypersonic vehicle which can function well on the target 900 km away. © 2023 SPIE.

关键词： Hypersonic vehicles

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Application of 3D imaging lidar technology on helicopter platform

Application of 3D imaging lidar technology on helicopter pla...

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2022 Conference on Infrared, Millimeter, Terahertz Waves and Applications, IMT 2022

作者： Fu, Jie Qi, Heng Wang, Shaofei Zheng, Guofeng Qi, Tao Zhang, Peng Luoyang Electro-Optical Equipment Research Institute of AVIC Henan Luoyang China Science and Technology on Electro-Optic Control Laboratory Henan Luoyang China North Institute for Scientific and Technical Information Beijing China

ISBN: (纸本)9781510662476

As an important branch of lidar technology, laser 3D imaging technology can be used to detect the outside of the target features, and in the military vehicles, aircraft to be practical application, has been the world’s military attention and recognized. Laser 3D imaging can detect and display the information such as the appearance and outline of the target object, and can be combined with image processing technology, GPS technology, and pattern recognition technology, to finally realize the position and external details of the target object. Compared with the traditional two-dimensional remote sensing and image photography technology, it can more truly and carefully reflect the characteristics of the target object, so the three-dimensional imaging lidar technology has great development prospects. This paper introduces the principle of 3D imaging lidar, working system and the key technology in the development process, and analyzed the development trend and characteristics of 3D imaging lidar, comparing the application of 3D imaging lidar technology at home and abroad, and finally puts forward the development trend of 3D imaging lidar on the airborne platform. © 2023 SPIE.

关键词： optical radar

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