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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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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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Simulation research on holographic modal wavefront sensing of atmospheric propagating laser 8

Simulation research on holographic modal wavefront sensing o...

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8th Symposium on Novel Photoelectronic Detection technology and Applications

作者： Li, Yuqing Cheng, Jingxin Yang, Haibo Ma, Wenchao Gu, Jianda Liu, Tongyu Science and Technology on Electro-Optical Information Security Control National Key Laboratory Tianjin300308 China

ISBN: (数字)9781510653122

ISBN: (纸本)9781510653115

The disturbance of atmospheric turbulence during laser transmission is a major problem in the field of high-energy laser transmission and communication. Fast and real time wavefront sensing is one of the key technologies in adaptive optical systems. For laser emission or communication systems with relatively smaller optical apertures and transmission distances, atmospheric aberration is mainly composed of low-order Zernike modes with weak intensity. Traditional Hartmann wavefront sensor works by regional segmentation and reconstruction of the wavefront plane, which need complicated matrix calculation, inducing considerable time delay. Its application in laser wavefront sensing can be technically sophisticated and redundant. Holographic modal wavefront sensing technology takes advantage of parallel modal detection method to obtain the intensity of specific modes of aberrations carried by the laser directly. With benefits of higher speed, smaller time delay, and compact system structure, it may be more suitable for atmospheric laser wavefront sensing. Here, we carried out simulation research on holographic modal wavefront sensor and its application in atmospheric laser wavefront sensing, the measuring accuracy and validation frontier of this technology are analyzed. The result provided informative support on high speed laser aberration sensing and correction. © 2022 SPIE

关键词： Atmospheric turbulence

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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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A kind of multiwavelength erbium-doped fiber laser based on Lyot filter

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Chinese Physics B 2023年第3期32卷 252-257页

作者：周哲海吴婧仪闵昆龙赵爽李慧宇 Beijing Laboratory of Optical Fiber Sensing and System Beijing Information Science&Technology UniversityBeijing 100192China Beijing Aerospace Measurement&Control Technology Co. Ltd.Beijing 100041China

A multiwavelength tunable ring-cavity erbium-doped fiber laser(EDFL)based on a Lyot filter was *** the proposed Lyot filter,a comb filter consisting of an EDF-polarization-maintaining fiber(EDF-PMF),a polarization controller(PC),and a circulator with four ports was used to suppress the mode *** light transmission direction was guaranteed by the *** the proposed fiber laser,tunable single,dual,triple,quadruple,quintuple,sextuple,and septuple wavelengths were realized.A single-wavelength laser output with an optical signal-to-noise ratio(SNR)of up to30.56 dB was realized,and a tuning range of 1590.54 nm to 1599.54 nm was achieved by tuning the *** stability of the single,dual,triple,and quadruple-wavelength center power fluctuations was less than 0.05 dB,0.98 dB,5.07 dB,and7.71 dB *** the laser was operated in the multiwavelength condition,the SNR was more than 20.97 *** proposed erbium-doped fiber laser is suitable for fiber-sensing system applications.

关键词： multiwavelength erbium-doped fiber laser Lyot filter polarization-maintaining fiber circulator

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Scanning Speed Test technology of Scanning Mirror based on Image Processing 8

Scanning Speed Test Technology of Scanning Mirror based on I...

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8th Symposium on Novel Photoelectronic Detection technology and Applications

作者： Guo, Chenlong Science and Technology on Electro-Optic Control Laboratory Luoyang471000 China Luoyang Institute of Electro-Optical Equipment Luoyang471000 China

ISBN: (数字)9781510653122

ISBN: (纸本)9781510653115

In this paper, a non-contact method for measuring scanning speed of photoelectric radar scanning mirror is proposed, which collects scanning video of photoelectric radar scanning mirror by high-speed camera, and detects the motion track of scanning mirror by image tracing in image processing, then corrects the distortion of scanning track by using the method of projection transformation of space coordinate system, and in the end, the scanning speed is obtained by differentiating the time. This method is suitable for all line photoelectric radar products, and it is simple, fast and easy to operate. © 2022 SPIE

关键词： Scanning

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Design of Infrared Detection Sensitivity Test Equipment Based on Double Black Body 8

Design of Infrared Detection Sensitivity Test Equipment Base...

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8th Symposium on Novel Photoelectronic Detection technology and Applications

作者： Xie, Fei Qi, Tao Zhang, Peng Luoyang Institute of Electro-Optical Equipment Luoyang471009 China Science and Technology on Electro-Optic Control Laboratory Luoyang471009 China

ISBN: (数字)9781510653122

ISBN: (纸本)9781510653115

In the infrared detection sensitivity test of optoelectronic products, the black body mostly adopts a single black body structure, and the ambient temperature is obtained by the temperature sensor of the black body close to the aperture aperture, not the aperture aperture to simulate the background *** the condition of large temperature difference, the black body irradiates the back of the aperture aperture for a long time, which will cause the surface temperature of the aperture aperture to rise and introduce large errors. The infrared detection sensitivity test system based on double black body adopts target black body and background black body to achieve accurate simulation of target and background temperature respectively. The target black body is transmitted through the aperture aperture to complete the target radiation simulation, and the background black body is reflected through the aperture aperture to complete the background radiation simulation. The designed infrared detection sensitivity test system has an optical aperture of ?500mm, a focal length of 4000mm, a temperature adjustment accuracy of 0.01°C, a field of view of 2°, and an exit radiation uniformity better than 90%. It adopts environmental adaptation design to ensure that it can work under a wide temperature range of -55? ~ 70?, which effectively expands the test range of infrared detection sensitivity testing. © 2022 SPIE

关键词： optical design

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Design and Application of Infrared Dynamic Dual-target Simulator 8

Design and Application of Infrared Dynamic Dual-target Simul...

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8th Symposium on Novel Photoelectronic Detection technology and Applications

作者： Xie, Fei Qi, Tao Zhang, Peng Luoyang Institute of Electro-Optical Equipment Luoyang471009 China Science and Technology on Electro-Optic Control Laboratory Luoyang471009 China

ISBN: (数字)9781510653122

ISBN: (纸本)9781510653115

In response to the existing test requirements for airborne optoelectronic products, a long-wavelength band (7.5µm ~12.0µm) dynamic dual-target simulator was developed. Compared with previous dynamic scene projection equipment. The dynamic dual target simulator realizes the simulation of moving targets by moving target plates of different shapes and sizes at the rear focal plane of the collimating optical system. The two targets are respectively located on the conjugate focal plane of the collimating optical system, and the coupling of the two targets is realized through the beam combiner. The beam combiner can respectively transmit and reflect two infrared targets, so that the two infrared target beams can be efficiently combined into one infrared beam, while ensuring that no ghost images are generated. © 2022 SPIE

关键词： optical design

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Research on development method of an artificial intelligent decision-making system 8

Research on development method of an artificial intelligent ...

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8th Symposium on Novel Photoelectronic Detection technology and Applications

作者： Chen, Hai-Xia Zhang, Zi-Hao Kong, Xiao-Ling Sun, Yu-Xin Science and Technology on Electro-Optical Information Security Control Laboratory Airport Economic Zone Tianjin300308 China

ISBN: (数字)9781510653122

ISBN: (纸本)9781510653115

An artificial intelligent decision-making system based on Deep Q Network is developed according to the characteristic of the optoelectronic countermeasures for defense. In view of the high complexity of the input state variables of the system, simulation method is used to sift the state variables so as to reduce the input dimension of the network. In addition, simulation method is used to generate enough samples for the network training. Aiming at the adaptability evaluation of the system, evolutionary evaluation index is designed and simulation method is used to evaluate the adaptability of online learning ability of the system. © 2022 SPIE

关键词： Decision making

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