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Worst-Case Integrity Attacks and Resilient State Estimation With Partially Secured Measurements

IEEE Transactions on control of Network Systems 2025年第2期12卷 1769-1779页

作者： Zhou, Jing Shang, Jun Chen, Tongwen University of Alberta Department of Electrical and Computer Engineering EdmontonABT6G 1H9 Canada Tongji University Department of Control Science and Engineering Shanghai Institute of Intelligent Science and Technology National Key Laboratory of Autonomous Intelligent Unmanned Systems Frontiers Science Center for Intelligent Autonomous Systems Shanghai200092 China

This paper examines the problem of optimal deception attacks against state estimation with partially secured measurements, where smart sensors transmit innovation sequences to the remote end for information fusion. Due to resource limitations or defensive countermeasures, the adversary can only modify data packets transmitted through unreliable channels. Meanwhile, the attack should be synthesized with sophistication to deceive an anomaly detector. To investigate the vulnerabilities of such estimation systems without feedback links and enhance security performance, the optimal attack policy is derived by formulating and explicitly solving a convex optimization problem, with the goal of maximizing the sum of estimation errors. Subsequently, a novel attack detection and resilient state estimation algorithm is proposed to ensure an acceptable level of estimation accuracy. The theoretical performance metrics, including false alarm rates for the proposed detector, are provided. Finally, the effectiveness of the results is confirmed through numerical examples. © 2014 IEEE.

关键词： Optimal detection

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Designing hard wear-resistant conductors by introducing high-plasma-energy heterogeneous metals into transition metal nitrides

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Journal of Materials science & technology 2023年第26期157卷 213-219页

作者： Yuankai Li Chaoquan Hu Yao Wu Zhenan Qiao Yifan Cheng Zhiqing Gu Gang Gao Weitao Zheng State Key Laboratory of Superhard Materials Key Laboratory of Automobile Materials of Ministry of EducationSchool of Materials Science and EngineeringJilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy MaterialsJilin UniversityChangchun 130012China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012China SINOPEC Star Co.Ltd. Beijing 100083China Key Laboratory of Medical Electronics and Digital Health of Zhejiang Province College of Information Science and EngineeringJiaxing UniversityJiaxing 314001China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150080China State Key Laboratory of Automotive Simulation and Control Jilin UniversityChangchun 130025China

*** Hard and wear-resistant conductors(HWCs)refer to functional films with simultaneously high hardness,high wear resistance,and good electrical *** have important applica-tions such as next-generation sliding electrical contacts,high-end conductive probe-tip,and oval hole guides for the precision rolling mill[1-4],which has drawn extensive research ***,it is still challenging to integrate high hardness,super wear resis-tance,and high electrical conductivity in one ***-ally,researchers have mainly alloyed the highly conductive met-als Cu,Au,and Pt to improve their hardness and wear resistance.

关键词： wear high electrical

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Synergy in Rice Immunity:Exploring Strategies of Coordinated Disease Defense Through Receptor-Like Kinases and Receptor-Like Cytoplasmic Kinases

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Rice science 2024年第6期31卷 643-658页

作者： PEI Mengtian CAO Yingying XIE Xuze CAO Ying CHEN Jia ZHANG Xi WANG Zonghua LU Guodong ZHANG Shenghang State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops Fujian Agriculture and Forestry UniversityFuzhou 350002China Fujian Key Laboratory of Aptamers Technology Fuzhou General Teaching Hospital(the 900th Hospital)Fujian Medical UniversityFuzhou 350002China Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering National Observations and Research Station for Wetland Ecosystems of the Yangtze EstuaryInstitute of Biodiversity Science and Institute of Eco-ChongmingSchool of Life SciencesFudan UniversityShanghai 200433China

Receptor-like kinases(RLKs)and receptor-like cytoplasmic kinases(RLCKs)play an indispensable role in the perception and transmission of extracellular signals in *** rice,these kinases actively participate in immune responses against a variety of pathogens,including fungi,bacteria,and ***,research on the specific response mechanisms and the spectrum of different kinase activities against various pathogens remains *** review provides an in-depth and comprehensive overview of the types and functions of RLKs and RLCKs involved in disease resistance,emphasizing the central role of certain RLKs and RLCKs in the plant immune *** kinases can recognize specific molecular patterns of pathogens and rapidly initiate an immune response in ***,the activity and functional regulation of these key kinases are tightly controlled by various post-translational modifications,such as phosphorylation and *** meticulous regulation ensures that the rice immune system's response is both precise and timely,effectively balancing the intensity of the immune response and preventing potential issues caused by either hyperactivity or *** synthesizing current research findings,this review not only broadens our understanding of the role of RLKs and RLCKs in plant immunity but also provides new perspectives and strategies for future research on disease resistance breeding in *** studies are expected to delve deeper into the signaling networks and regulatory mechanisms of these kinases,exploring their potential in agricultural production to develop rice varieties with enhanced disease resistance.

关键词： receptor-like kinase receptor-like cytoplasmic kinase pathogen-associated molecular pattern genetic breeding

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An Integrity Monitoring Algorithm Based on Multi-constellation/INS integrated Navigation for LPV-200

An Integrity Monitoring Algorithm Based on Multi-constellati...

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International Conference on Guidance, Navigation and control, ICGNC 2022

作者： Yang, Shaohua Zhang, Xiaodong Liu, Nan Li, Zhenwei Sun, Qixuan School of Automation Northwestern Polytechnical University Xi’an710072 China National Key Laboratory of Science and Technology On Aircraft Control FACRI Xi’an710076 China

ISBN: (纸本)9789811966125

This paper presents a new navigation integrity monitoring method required for civil aviation in LPV-200 approach phase. In this integrity monitoring system, multi-constellation and the corresponding failure types are taken into consideration. Firstly, the tightly coupled multi-constellation/INS integration model is constructed, including INS errors, baro-altitude bias and pseudo-range biases for GPS and BD. Then, due to the increase of constellation, the failure types are distinct from the single-constellation. Two kinds of failures with different probabilities of hazardously misleading information (PHMI ) are taken into account: inconsistent fault and consistent fault, which affect the integrity level. In addition, the distributed solution separation is used for integrity monitoring, which includes not only calculating the integrity parameters but also detecting and excluding the potential failures. Finally, the simulation reveals that the inconsistent fault is allowable and the consistent fault should be avoided. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Air navigation

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Finite-time control for the Hypersonic Morphing Flight Vehicle with FTESO 37

Finite-time Control for the Hypersonic Morphing Flight Vehic...

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37th Youth Academic Annual Conference of Chinese Association of Automation, YAC 2022

作者： Zhang, Yuan Huang, Wanwei Nie, Ying Beijing Aerospace Automatic Control Institute National Key Laboratory of Science and Technology on Aerospace Intelligent Control Beijing China

ISBN: (纸本)9781665465366

To address the large uncertainty issues caused by large parameters perturbation, difficult modeling of the deformation process, and complex external disturbances for the hypersonic morphing flight vehicle attitude control, a class of variable back-swept vehicle models are established and a finite-time attitude control scheme with FTESO is designed. Firstly, the three-DOF models with deformations for attitude control are developed, which can reflect the intrinsic effects of the morphing process. Secondly, the aerodynamic properties of the morphing vehicle under some typical states are analyzed, and a feasible way to handle the key aerodynamic data of continuous deformation is presented. Furthermore, a finite-time control scheme based on sliding-mode method is designed for the continuously deformable hypersonic morphing flight vehicle. Additionally, considering the command differentiation terms are necessary for the control law, the command convergence filter is introduced. Then, the finite-time extended state observer is used to estimate the 'combined disturbances'. Finally, numerical simulations along with three circumstances verify the efficiency and robustness of the proposed control scheme. © 2022 IEEE.

关键词： Sliding mode control

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Time-frequency analysis and spiking neural network for motor imagery EEG classification

Time-frequency analysis and spiking neural network for motor...

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2022 Chinese Automation Congress, CAC 2022

作者： Liu, Zhenfei Wang, Lina Xu, Song Beijing Aerospace Automatic Control Institute National Key Laboratory of Science and Technology on Aerospace Intelligence Control Beijing China

ISBN: (纸本)9781665465335

Accurate recognition of electroencephalogram (EEG) is an important issue in motor imagery (MI)-based brain-computer interface (BCI) system. However, due to the non-linear and low signal-to-noise characteristics of EEG signal, the recognition of MI EEG signal remains a tricky problem. In this paper, a novel framework based on time-frequency analysis and spiking neural network (SNN) is proposed for feature extraction and classification of MI EEG signal. Specifically, the multi-wavelet basis functions (MWBF) are first employed for the approximation of coefficients in the time-varying autoregressive (TVAR) model. An effective regularized orthogonal least squares (ROLS) algorithm is then applied to significantly simplify the model structure. In addition, a power spectral density (PSD) function is defined to obtain high-resolution time-frequency features. Especially, to adequately exploit the spatio-temporal properties of the obtained features, a powerful SNN model is constructed for accurate classification. The proposed method is validated on a widely used dataset, and the results indicate that the classification performance of the proposed method is significantly better than other state-of-the-art methods. © 2022 IEEE.

关键词： Classification (of information)

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Transfer learning with a spatiotemporal graph convolution network for city flowprediction

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Frontiers of Information technology & Electronic Engineering 2025年第1期26卷 79-92页

作者： Binkun LIU Yu KANG Yang CAO Yunbo ZHAO Zhenyi XU Department of Automation University of Science and Technology of ChinaHefei 230026China Key Laboratory of System Control and Information Processing Ministry of EducationShanghai 200240China Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefei 230088China Institute of Advanced Technology University of Science and Technology of ChinaHefei 230088China

Recently,deep learning based city flow prediction has been extensively used in the establishment of *** methods are data-hungry,making them unscalable to areas lacking *** transfer learningcan use data-rich source domains to assist target domain cities in city flow prediction,the performance of existingmethods cannot meet the needs of actual use,because the long-distance road network connectivity is *** this problem,we propose a transfer learning method based on spatiotemporal graph convolution,in which weconstruct a co-occurrence space between the source and target domains,and then align the mapping of the sourceand target domains’data in this space,to achieve the transfer learning of the source city flow prediction modelon the target ***,a dynamic spatiotemporal graph convolution module along with a temporalencoder is devised to simultaneously capture the concurrent spatiotemporal features,which implies the inherentrelationship among the road network structures,human travel habits,and city bike ***,these concurrentfeatures are leveraged as cross-city invariant representations and nonlinearly spanned to a co-occurrence *** domain features are thereby aligned with the source domain features in the co-occurrence space by using aMahalanobis distance loss,to achieve cross-city bike flow *** proposed method is evaluated on the publicbike flow datasets in Chicago,New York,and Washington in 2015,and significantly outperforms state-of-the-arttechniques.

关键词： Transfer learning City flow prediction Spatiotemporal graph convolution

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Rheological mechanical properties and its constitutive relation of soft rock considering influence of clay mineral composition and content

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International Journal of Coal science & technology 2023年第4期10卷 62-76页

作者： Xuebin Li Xuesheng Liu Yunliang Tan Ai Chen Honglei Wang Xin Wang Shenglong Yang College of Energy and Mining Engineering Shandong University of Science and TechnologyQingdao 266590China State Key Laboratory of Mining Disaster Prevention and Control Shandong University of Science and TechnologyQingdao 266590China Ningxia Coal Industry Co. Ltd.of China Energy GroupYinchuan 750000China Badong National Observation and Research Station of Geohazards China University of GeosciencesWuhan 430074China

Rheological mechanical properties of the soft rock are afected signifcantly by its main physical characteristics-clay *** this study,taking the mudstone on the roof and foor in four typical mining regions as the research object,frstly,the clay mineral characteristic was analyzed by the X-ray difraction ***,rheological mechanical properties of mudstone samples under diferent confning pressures are studied through triaxial compression and creep *** results show that the clay mineral content of mudstone in diferent regions is diferent,which leads to signifcant diferences in its rheological properties,and these diferences have a good correlation with the content of montmorillonite and illite-montmorillonite mixed *** the montmorillonite content as an example,compared with the sample with 3.56%under the lower stress level,the initial creep deformation of the sample with 11.19%increased by 3.25 times,the viscosity coefcient and longterm strength decreased by 80.59%and 53.94%,***,based on the test results,the damage variation is constructed considering the montmorillonite content and stress level,and the M–S creep damage constitutive model of soft rock is ***,the test results can be ftted with determination coefcients ranging from 0.9020 to 0.9741,which proves that the constitutive relation can refect the infuence of the clay mineral content in the samples *** study has an important reference for revealing the long-term stability control mechanism of soft rock roadway rich in clay minerals.

关键词： Clay mineral Physical characteristic Creep Damage Constitutive model

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Transient Power Sharing control Algorithm between Virtual Synchronous Generator and Diesel Generator in Isolated Microgrid 5

Transient Power Sharing Control Algorithm between Virtual Sy...

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5th IEEE International Electrical and Energy Conference, CIEEC 2022

作者： Li, Chun Ma, Fan Hu, Qi Hao, Xiaoliang Xiao, Runlong Naval University of Engineering National Key Laboratory of Science and Technology on Vessel Integrated Power System Wuhan China

ISBN: (数字)9781665411042

ISBN: (纸本)9781665411042

Mixed-source isolated microgrid is usually composed of renewable energy, energy storage devices and diesel generators (DGs). Virtual synchronous generator (VSG) has been developed recently years. In such an isolated microgrid, transient power cannot be shared due to the faster response of the VSGs, which may cause the overcurrent of the VSGs. Inverter capacity can not be fully utilized. To solve this problem, first, the cause of unequal transient load sharing is analyzed. Then, an improved VSG control algorithm is proposed. The speed governor characteristics of DG is added in VSG, and the virtual impedance of VSG is designed. Finally, the proposed control algorithm is validated by simulation. © 2022 IEEE.

关键词： Synchronous generators

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Neural Dynamics for Cooperative Motion control of Omnidirectional Mobile Manipulators in the Presence of Noises: A Distributed Approach

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IEEE/CAA Journal of Automatica Sinica 2024年第7期11卷 1605-1620页

作者： Yufeng Lian Xingtian Xiao Jiliang Zhang Long Jin Junzhi Yu Zhongbo Sun the Department of Control Engineering Changchun University of TechnologyChangchun 130012China IEEE the College of Information Science and Engineering Northeastern UniversityShenyang 110819 the National Mobile Communications Research Laboratory Southeast UniversityNanjing 210096China the School of Information Science and Engineering Lanzhou UniversityLanzhou 730000China the State Key Laboratory for Turbulence and Complex Systems Department of Advanced Manufacturing and RoboticsCollege of EngineeringPeking UniversityBeijing 100871China

This paper presents a distributed scheme with limited communications, aiming to achieve cooperative motion control for multiple omnidirectional mobile manipulators(MOMMs).The proposed scheme extends the existing single-agent motion control to cater to scenarios involving the cooperative operation of MOMMs. Specifically, squeeze-free cooperative load transportation is achieved for the end-effectors of MOMMs by incorporating cooperative repetitive motion planning(CRMP), while guiding each individual to desired poses. Then, the distributed scheme is formulated as a time-varying quadratic programming(QP) and solved online utilizing a noise-tolerant zeroing neural network(NTZNN). Theoretical analysis shows that the NTZNN model converges globally to the optimal solution of QP in the presence of noise. Finally, the effectiveness of the control design is demonstrated by numerical simulations and physical platform experiments.

关键词： Cooperative motion control noise-tolerant zeroing neural network(NTZNN) omnidirectional mobile manipulator(OMM) repetitive motion planning

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