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2024 China Automation Congress, CAC 2024

作者： He, Shaoqi Xiao, Liangang Gao, Shibo National Key Laboratory and Technology on Aerospace Intelligence Control Beijing Aerospace Automatic Control Institute Beijing China Committee of Science and Technology National Key Laboratory of Science and Technology on Aerospace Beijing Aerospace Automatic Control Institute Beijing China Guidance and Detection Division Beijing Aerospace Automatic Control Institute Beijing China

ISBN: (纸本)9798350368604

Synthetic Aperture Radar (SAR) is widely used in the fields of strategic exploration and ocean surveillance due to its all-day, all-weather wide-area search and detection *** images are sensitive to the imaging azimuth, and the SAR images of the same ship target in different azimuths have certain differences, and the multi-azimuth SAR image sequence contains rich classification and identification information. Aiming at the problem that environmental interference and data corruption affect the reliability of multi-view integration and final decision, this paper proposes a credible multi-view ship target recognition algorithm based on pseudo-view enhancement, which achieves high recognition accuracy under interference conditions, small datasets, and variations in the number of input images, respectively. The experimental results show that the recognition accuracy of this method is better than other target recognition on most of the datasets and has a certain degree of robustness. © 2024 IEEE.

关键词： Synthetic aperture radar

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Adaptive Trap-Based Noise Suppression Interference Suppression Algorithm

Adaptive Trap-Based Noise Suppression Interference Suppressi...

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2023 China Automation Congress, CAC 2023

作者： He, Shaoqi Xiao, Liangang Sun, Peng Beijing Aerospace Automatic Control Institute National KeyLaboratory and Technology on Aerospace Intelligence Control Beijing China Beijing Aerospace Automatic Control Institute Committee of Science and Technologyational Key Laboratory of Science and Technology on Aerospace Beijing China Beijing Aerospace Automatic Control Institute Guidance and Detection Division Beijing China

ISBN: (纸本)9798350303759

Aiming at the problem of poor anti-noise interference ability of linear FM fuzes, the noise FM interference suppression method based on adaptive trap is proposed, and the adaptive trap is applied to linear FM fuzes for the single-frequency characteristics of linear FM fuzes generated by the frequency-checking signals. By adaptively adjusting the weights of the trap, the trap has a trapping characteristic at the frequency Dian of the differential frequency signal, so as to achieve the effect of noise FM interference suppression, and experiments show that the algorithm can recover the target echo signal when the interference signal is stronger than the target echo by 10 dB. © 2023 IEEE.

关键词： Frequency modulation

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A Trusted Multiview SAR Target Recognition Algorithm for Seaward Targets Based on Pseudo View Enhancement

A Trusted Multiview SAR Target Recognition Algorithm for Sea...

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Chinese Automation Congress (CAC)

作者： Shaoqi He Liangang Xiao Shibo Gao National Key Laboratory and Technology on Aerospace Intelligence Control Beijing Aerospace Automatic Control Institute Beijing China Committee of Science and Technologyational Key Laboratory of Science and Technology on Aerospace Beijing Aerospace Automatic Control Institute Beijing China Guidance and Detection Division Beijing Aerospace Automatic Control Institute Beijing China

ISBN: (数字)9798350368604

ISBN: (纸本)9798350368611

关键词： Accuracy Image recognition Target recognition Azimuth Heuristic algorithms Interference Robustness Radar polarimetry Marine vehicles Synthetic aperture radar

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All laser direct writing process for temperature sensor based on graphene and silver

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Frontiers of Optoelectronics 2024年第1期17卷 45-55页

作者： Qi Li Ruijie Bai Lianbo Guo Yang Gao Shanghai Key Laboratory of Intelligent Sensing and Detection Technology School of Mechanical and Power EngineeringEast China University of Science and TechnologyShanghai 200237China North Automatic Control Technology Institute Taiyuan 030006China Wuhan National Laboratory for Optoelectronics Huazhong University of Science&TechnologyWuhan 430074China

A highly sensitive temperature sensing array is prepared by all laser direct writing(LDW)method,using laser induced silver(LIS)as electrodes and laser induced graphene(LIG)as temperature sensing layer.A finite element analysis(FEA)photothermal model incorporating a phase transition mechanism is developed to investigate the relationship between laser parameters and LIG properties,providing guidance for laser processing parameters selection with laser power of 1–5 W and laser scanning speed(greater than 50 mm/s).The deviation of simulation and experimental data for widths and thickness of LIG are less than 5%and 9%,*** electrical properties and temperature responsiveness of LIG are also *** changing the laser process parameters,the thickness of the LIG ablation grooves can be in the range of 30–120μm and the resistivity of LIG can be regulated within the range of 0.031–67.2Ω・*** percentage temperature coefficient of resistance(TCR)is calculated as−0.58%/°***,the FEA photothermal model is studied through experiments and simulations data regarding LIS,and the average deviation between experiment and simulation is less than 5%.The LIS sensing samples have a thickness of about 14μm,an electrical resistivity of 0.0001–100Ω・m is insensitive to temperature and pressure ***,for a LIS-LIG based temperature sensing array,a correction factor is introduced to compensate for the LIG temperature sensing being disturbed by pressure stimuli,the temperature measurement difference is decreased from 11.2 to 2.6°C,indicating good accuracy for temperature measurement.

关键词： Laser direct writing Temperature sensor Finite element analysis Laser induced graphene Laser induced silver

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Adaptive Trap-Based Noise Suppression Interference Suppression Algorithm

Adaptive Trap-Based Noise Suppression Interference Suppressi...

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Chinese Automation Congress (CAC)

作者： Shaoqi He Liangang Xiao Peng Sun National KeyLaboratory and Technology on Aerospace Intelligence Control Beijing Aerospace Automatic Control Institute Beijing China Committee of Science and Technologyational Key Laboratory of Science and Technology on Aerospace Beijing Aerospace Automatic Control Institute Beijing China Guidance and Detection Division Beijing Aerospace Automatic Control Institute Beijing China

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Classification algorithm-assisted multi-objective optimization in terahertz hollow core anti-resonant fiber design

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Optics Express 2025年第12期33卷 26651-26670页

作者： Lihong Zhai Jiyang Luo Hairuo Wang Jinxiao Pan Ping Chen Shanxi Key Laboratory of Intelligent Detection Technology and Equipment North University of China Taiyuan 030051 China School of Information and Communication Engineering North University of China Taiyuan 030051 China Department of Electronic Engineering Taiyuan Institute of Technology Taiyuan 030008 China chenping@*** North Automatic Control Technology Institute Taiyuan 030006 China zhailh@***

This study applies multi-objective optimization algorithms to the design of hollow anti-resonant fiber structures in the terahertz frequency band, focusing on four distinct models. It introduces a classification algorithm as a surrogate model to assist in multi-objective optimization, addressing challenges related to computational efficiency and data classification. The optimization targets key performance indicators, including low loss, high higher-order mode extinction ratio, high birefringence, and high polarization extinction ratio. Multiple multi-objective optimization algorithms are compared to evaluate their performance. The classification algorithm aids in parameter tuning and facilitates a comparative analysis of different optimization algorithms, enhancing the overall optimization process.

关键词： Effective refractive index Extinction ratios Fiber design Hollow core fibers Neural networks Refractive index

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3D Characteristic Diagram of Acoustically Induced Surface Vibration with Different Landmines Buried

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Transactions of Tianjin University 2016年第4期22卷 367-373页

作者：吴智强张燕丽王驰朱俊徐文文袁志文 Department of Precision Mechanical Engineering Shanghai UniversityShanghai 200072China North Automatic Control Technology Research Institute Taiyuan 030006China Science and Technology on Near-Surface Detection Laboratory Wuxi 214035China State Key Laboratory of Precision Measuring Technology and Instruments Tianjin UniversityTianjin 300072China Shanghai Public Utility School Shanghai 200030China

The 3D characteristic diagram of acoustically induced surface vibration was employed to study the influence of different buried landmines on the acoustic detection signal. By using the vehicular experimental system for acoustic landmine detection and the method of scanning detection, the 3D characteristic diagrams of surface vibration were measured when different objects were buried underground, including big plastic landmine, small plastic landmine, big metal landmine and bricks. The results show that, under the given conditions, the surface vibration amplitudes of big plastic landmine, big metal landmine, small plastic landmine and bricks decrease in turn. The 3D characteristic diagrams of surface vibration can be used to further identify the locations of buried landmines.

关键词： acoustic-to-seismic(A/S) coupling acoustic landmine detection acoustic resonance surface vibration velocity

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SINS/CNS/GNSS integrated navigation scheme for advanced upper stage

SINS/CNS/GNSS integrated navigation scheme for advanced uppe...

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International Conference on Mechatronics and control (ICMC)

作者： Hua Zong Zhun Liu Xiaoying Gao Bo Wang Sen Wang Da Xu School of Automation Beijing Institute of Technology The National Key Laboratory of Science and Technology on Aerospace Intelligent Control Beijing China The National Key Laboratory of Science and Technology on Aerospace Intelligent Control Beijing China Beijing Aerospace Automatic Control Institute Beijing China School of Automation Beijing Institute of Technology Beijing China Beijing Aerospace Control Device Institute Beijing China

ISBN: (纸本)9781479925391

A SINS/CNS/GNSS integrated navigation scheme is researched for advanced upper stage in this paper. First of all, the composition of the integrated navigation is introduced. Then, the error model of the integration system in launch inertial frame was established. especially the misalignments of star tracker are inputted as system states, and also the federated filter algorithm is used to estimate the state errors of the integrated navigation system. Finally, simulations results show that the SINS/CNS/GNSS integrated navigation can provide navigation parameters with high accuracy, which can meet the accuracy requirements of advanced upper stage.

关键词： Global Positioning System Accuracy Mathematical model Position measurement Computers

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A high-performance measurement method for artery intima-media thickness in medical ultrasound images

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Optoelectronics Letters 2010年第6期6卷 469-472页

作者：金晶王艳高欣王祁 Laboratory of Detection Technology and Automatic Equipment Department of Control Science and EngineeringHarbin Institute of Technology

A high-performance measurement method for the artery intima-media thickness(IMT) in medical ultrasound images is *** scheme mainly consists of two *** first part is the detection process,including adaptive gray stretching for image enhancing,gradient transforming to restrain the over-segmentation,and the watershed algorithm for edge *** intima can be detected automatically and *** second part,combined with regional positioning and boundary fitting stages,is used to measure the *** results show that the proposed scheme can yield a good measurement result,and the calculation time can satisfy the practical requirement.

关键词：测量方法超声图像内膜医学性能厚度中层动脉

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automatic measurement of the artery intima-media thickness with image empirical mode decomposition

Automatic measurement of the artery intima-media thickness w...

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IEEE International Conference on Imaging Systems and Techniques

作者： Jin, Jing Wang, Yan Gao, Xin Shen, Yi Wang, Qi Lab. of Detection Technology and Automatic Equipment Dept. of Control Science and Engineering Harbin Institute of Technology Harbin 150001 China

ISBN: (纸本)9781424464944

Artery intima-media thickness (IMT) is a useful marker for diagnosis of atherosclerosis. In this paper, we have proposed a new scheme for detection and measurement of the IMT in medical ultrasound images, in which the image empirical mode decomposition (IEMD) is used as the detection part as well as adaptive gray stretching, and watershed segmentation for extracting boundary of intima. To measure the IMT, a new method combing with regional positioning and boundary fitting is adopted. Experimental results show that the proposed scheme can yield a good measurement result, and the calculation time can satisfy the practical requirement. Moreover, our method needs less manual input than others. © 2010 IEEE.

关键词： Empirical mode decomposition

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