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Autonomous optical navigation of Mars probe aided by one-way Doppler measurements in capture stage

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Journal of Systems Engineering and Electronics 2020年第3期31卷 602-611页

作者： ZHANG Zhibin ji haibo YANG jie School of Information and Technology University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Astronautics Dynamics Xi’an Satellite Control CenterXi’an 710043China

The optical navigation errors of Mars probe in the capture stage depend closely on which targets are selected to be observed in the Mars *** for this problem,an integrated navigation scheme is proposed wherein the optical observation is aided by one-way Doppler *** errors are then analyzed respectively for the optical observation and one-way Doppler *** real-time calculating scheme which exploits the extended Kalman filter(EKF)framework is designed for the integrated *** simulation tests demonstrate that the errors of optical navigation,which select the Mars moon as the observation target,are relatively smaller than those in the Mars-orientation optical navigation *** one hand,the integrated navigation errors do not depend on the selecting pattern of optical observation *** the other hand,the integrated navigation errors are significantly reduced as compared with those in the optical-alone autonomous navigation mode.

关键词： Mars probe autonomous navigation one-way Doppler measurement optical observation capture stage

OUTPUT REGULATION PROBLEM FOR A CLASS OF SISO INFINITE DIMENSIONAL SYSTEMS VIA A FINITE DIMENSIONAL DYNAMIC CONTROL

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Journal of Systems Science & Complexity 2014年第6期27卷 1172-1191页

作者： WANG Xinghu ji haibo SHENG jie Department of Automation University of Science and Technology of China

This paper deals with the output regulation problem for a class of SISO infinite dimensional systems with an uncertain *** these systems,a concept of relative degree is firstly introduced and used to construct a transformation which leads to the canonical form of output feedback ***,based on this canonical form,by means of an internal model and a recursive adaptive control,the authors obtain an adaptive regulator which solves the *** should be pointed out that the proposed regulator is finite dimensional while it is usually infinite dimensional in existing literatures.

关键词： Infinite dimensional systems output feedback form output regulation problem.

Trajectory Tracking Strategy for Gliding Hypersonic Vehicle with Aileron Stuck at an Unknown Angle

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Journal of Beijing Institute of Technology 2019年第3期28卷 447-455页

作者： haibo ji Lei Wang School of Automation Beijing Institute of TechnologyBeijing 100081China State Key Laboratory of Intelligent Control and Decision of Complex Systems Ministry of EducationBeijing 100081China

A nonlinear robust trajectory tracking strategy for a gliding hypersonic vehicle with an aileron stuck at an unknown position is presented in this paper. First, the components of translational motion dynamics perpendicular to the velocity are derived, and then a guidance law based on a time-varying sliding mode method is used to realize trajectory tracking. Furthermore, the rotational equations of motion are separated into an actuated subsystem and an unactuated subsystem. And an adaptive time-varying sliding mode attitude controller is proposed based on the actuated subsystem to track the command attitude and the tracking performance and robustness are therefore enhanced. The proposed guidance law and attitude controller make the hypersonic vehicle fly along the reference trajectory even when the aileron is stuck at an unknown angle. Finally, a hypersonic benchmark platform is used to demonstrate the effectiveness of the proposed strategy.

关键词： trajectory tracking stuck aileron time-varying sliding mode

Hierarchical control of a class of uncertain linear systems

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Journal of Control and Decision 2016年第2期3卷 119-131页

作者： Kaihong Yang haibo ji Department of Automation University of Science and Technology of ChinaHefeiChina

Hierarchical control method which is based on a hierarchical architecture has been developed to be mainly aimed at large-scale complex *** order to analyse and control this kind of systems,we construct first an appropriate and low-dimensional abstract system,then synthesise and lift the control law from the obtained abstraction to the original *** far as the linear systems with uncertain terms are concerned,this paper studies the robust control problem of high-dimensional uncertain linear systems and derives the results by employing hierarchical ***,the LMI toolbox is allowed to be used for the computation of interface ***,our method framework is illustrated on a five-dimensional uncertain linear system.

关键词： hierarchical control abstraction robust control uncertain linear systems

Guaranteed control performance robust LQG regulator for discrete-time Markovian jump systems with uncertain noise

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Journal of Systems Engineering and Electronics 2007年第4期18卷 885-891页

作者： Zhu jin Xi Hongsheng Xiao Xiaobo ji haibo Dept. of Automation Univ. of Science &: technology of China Hefei 230027 P. R. China

Robust LQG problems of discrete-time Markovian jump systems with uncertain noises are investigated. The problem addressed is the construction of perturbation upper bounds on the uncertain noise covariances so as to guarantee that the deviation of the control performance remains within the precision prescribed in actual problems. Furthermore, this regulator is capable of minimizing the worst performance in an uncertain case. A numerical example is exploited to show the validity of the method.

关键词： Markovian jump systems LQG uncertain noise control performance

A Continuous Leader-following Consensus Control Strategy for a Class of Uncertain Multi-agent Systems

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IEEE/CAA Journal of Automatica Sinica 2014年第2期1卷 187-192页

作者： Chuanrui Wang Xinghu Wang haibo ji Department of Automation University of Science and Technology of China Institute of Systems Science Chinese Academy of Sciences

In this paper, we study the robust leader-following consensus problem for a class of multi-agent systems with unknown nonlinear dynamics and unknown but bounded disturbances. The control input of the leader agent is nonzero and not available to any follower agent. We first consider a class of high order chain integrator-type multi-agent *** employing the robust integral of the sign of the error technique, a continuous distributed control law is constructed using local information obtained from neighboring agents. Using Lyapunov analysis theory, we show that under a connected undirected information communication topology, the proposed protocol achieves semiglobal leader-following consensus. We then extend the approach to a class of more general uncertain multiagent systems. A numerical example is given to verify our proposed protocol.

关键词： Decentralized control Integrated circuits Multi-agent systems Robustness Topology Uncertainty Lyapunov stability distributed control uncertain systems Multi-agent systems Lyapunov methods topology decentralised control Uncertainty uncertain systems Electronic circuits Integrated circuits Robustness

Characteristic model based adaptive controller design and analysis for a class of SISO systems

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Science China(Information Sciences) 2016年第5期59卷 176-190页

作者： jianfei HUANG Yu KANG Bin MENG Yunbo ZHAO haibo ji State Key Laboratory of Fire Science University of Science and Technology of China Department of Automation University of Science and Technology of China Beijing Institute of Control Engeering College of Information Engineering Zhejiang University of Technology

The design of an adaptive controller and stability analysis of the corresponding closed loop system are discussed for a class of SISO systems based on the characteristic model method. The obtained characteristic model is a second-order slow time-varying linear system with a compress mapping function for the system modeling error. The pole placement method is used to design the controller, and sufficient conditions for the stability of the closed loop system are obtained based on the robust control theory of slow time-varying systems with perturbations. The effectiveness of the proposed method is illustrated by two numerical examples.

关键词： characteristic model modeling error pole placement perturbation analysis sampling system

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高强韧仿生螺旋复合材料超结构设计与分析

应用数学和力学 2024年第8期45卷 1106-1116页

作者：王昕李振季海波杨宏俊李秉洋王鹏飞中国航天科技创新研究院先进材料与能源研究中心北京100088 中国运载火箭技术研究院北京100076 北京大学工学院北京100871

随着人类航天活动的日益频繁,轨道空间环境不断恶化,提升航天器结构强度和韧性具有重要的现实意义.该文设计了具有中面对称特性的高强韧仿生螺旋复合材料超结构,开发了相应的热压制备工艺.通过准静态压痕性能测试,以荷载⁃位移曲线、峰... 详细信息

随着人类航天活动的日益频繁,轨道空间环境不断恶化,提升航天器结构强度和韧性具有重要的现实意义.该文设计了具有中面对称特性的高强韧仿生螺旋复合材料超结构,开发了相应的热压制备工艺.通过准静态压痕性能测试,以荷载⁃位移曲线、峰值力、失效位移、刚度与能量吸收为关键力学指标,分别在37层与73层下对正交、准各向同性以及5°,10°,20°螺旋铺层的碳纤维增强复合材料(carbon fibre reinforced polymer,CFRP)超结构进行了性能表征,并分析了破坏模式与失效机理.研究结果表明:相较于传统铺层方法,采用对称螺旋铺层方式能够有效减小层间应力,显著提升超结构的准静态压痕性能;尤其是当螺旋角设定为10°时,超结构在峰值载荷和能量吸收方面得到了卓越的性能提升.该研究成果不仅为航天领域内高性能复合材料超结构的设计与制造提供了理论支持,同时也为其实际应用奠定了实践基础.

关键词：碳纤维增强复合材料仿生螺旋铺层设计准静态压痕性能航天器超结构

着角与攻角联合作用下薄芳纶层合板抗平头弹侵彻性能

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应用数学和力学 2024年第2期45卷 184-196页

作者：季海波王昕苏金波李振王鹏飞巨圆圆卢天健南京航空航天大学机械结构力学及控制国家重点实验室南京210016 南京航空航天大学多功能轻量化材料与结构工信部重点实验室南京210016 中国航天科技创新研究院先进材料与能源研究中心北京100176 中船黄埔文冲船舶有限公司广州510715 海军研究院北京100161

为探究着角和攻角对薄芳纶层合板抗平头弹侵彻性能的影响,建立了三维有限元仿真模型,对4 mm厚芳纶层合板在着角单独作用下以及着/攻角联合作用下的弹道行为进行了计算.通过弹丸的剩余速度、靶板的极限弹道速度及穿孔能量阈值反映了芳纶... 详细信息

为探究着角和攻角对薄芳纶层合板抗平头弹侵彻性能的影响,建立了三维有限元仿真模型,对4 mm厚芳纶层合板在着角单独作用下以及着/攻角联合作用下的弹道行为进行了计算.通过弹丸的剩余速度、靶板的极限弹道速度及穿孔能量阈值反映了芳纶层合板的抗侵彻性能,分析了其在不同工况下的变形与破坏机理.结果表明:薄芳纶层合板的弹道极限速度随初始着角的增加先减小后增大;随着入射速度的增大和初始着角的减小,着角改变量和攻角改变量均有减小的趋势;对于固定的着角,负攻角不利于子弹侵彻,正攻角有利于侵彻.

关键词：着角攻角芳纶层合板平头弹弹道极限速度穿孔能量阈值