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第36届中国控制会议

作者： Shenghui Wang Kun Li haibo ji Kaihong Yang Department of Automation University of Science and Technology of China

ISBN: (纸本)9781538629185

A novel three-dimensional nonlinear guidance law is proposed based on block backstepping method and input-to-state stability theory for interception of maneuvering targets（evaders）.By viewing the target acceleration as a bounded disturbance input,input-to-state stability theory is utilized to design a state feedback guidance law so as to achieve robust tracking to the maneuvering *** stability analysis as well as the simulation results shows that the proposed approach can lead to successful interception of maneuvering target.

关键词： Block Backstepping Input-to-State Stability Uncertainties Robustness

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Pulse Signal Recovery Method Based on Sparse Representation

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Journal of Beijing Institute of Technology 2018年第2期27卷 161-168页

作者： jiangmei Zhang haibo ji Qingping Zhu Hongsen He Kunpeng Wang Department of Automation University of Science and Technology of China School of Information Engineering Southwest University of Science and Technology

Pulse signal recovery is to extract useful amplitude and time information from the pulse signal contaminated by noise. It is a great challenge to precisely recover the pulse signal in loud background noise. The conventional approaches,which are mostly based on the distribution of the pulse energy spectrum,do not well determine the locations and shapes of the pulses. In this paper,we propose a time domain method to reconstruct pulse signals. In the proposed approach,a sparse representation model is established to deal with the issue of the pulse signal recovery under noise conditions. The corresponding problem based on the sparse optimization model is solved by a matching pursuit algorithm. Simulations and experiments validate the effectiveness of the proposed approach on pulse signal recovery.

关键词： signal recovery pulse signal sparse representation matching pursuit

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维普期刊数据库

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Trajectory Tracking based on Time-Varying Sliding Mode Controller for Hypersonic Vehicle with Aileron Stuck

Trajectory Tracking based on Time-Varying Sliding Mode Contr...

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第36届中国控制会议

作者： haibo ji Lei Wang Zhuoyue Song Xiangdong Liu Zhirong Lei State Key Laboratory of Intelligent Control and Decision of Complex Systems and School of Automation Beijing Institute of Technology School of Automation Northwestern Polytechnical University

ISBN: (纸本)9781538629185

This paper presents nonlinear robust trajectory tracking strategies for the hypersonic vehicle whose ailerons are stuck at an unknown angular position. Firstly, a time-varying sliding mode control strategy for general second-order systems is introduced, and the chattering of sliding mode controller is alleviated. Secondly, the dynamics of hypersonic vehicle are transformed into two second-order systems. Then, the corresponding guidance law and attitude controller are designed using time-varying sliding mode controller. By the proposed strategies, the hypersonic vehicle can fly along the reference ***, the proposed strategies are applied to a hypersonic platform to verify its validity.

关键词： Trajectory Tracking Stuck Aileron Time-Varying Sliding Mode

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Flexible Si/PEDOT：PSS hybrid solar cells

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Nano Research 2015年第10期8卷 3141-3149页

作者： Shuxin Li Zhibin Pei Fei Zhou Ying Liu haibo Hu Shulin ji Changhui Ye AnhuiKeyLaboratoryofNanomaterials andTechnologyandKeyLaboratoryofMaterialsPhysicsInstituteofSolidStatePhysicsChineseAcademyofSciencesHefei230031China

Si hybrid solar cells have attracted tremendous research attention in recent years because of their low production costs and high performance. However, flexible Si hybrid solar cells have rarely been reported owing to the difficulty of fabricating single-crystalline Si with good flexibility. In this study, we fabricated flexible Si/PEDOT：PSS hybrid solar cells with micro-pyramid-structured Si light absorbers using a facile approach. Compared with planar flexible hybrid solar cells with a power-conversion efficiency of 4%, solar cells with micro-pyramid-structured Si light absorbers have a higher efficiency of 6.3%. External quantum efficiency and electrochemical impedance spectroscopy measurements revealed that the solar cells with micro-pyramid-structured Si light absorbers exhibited a pronounced light-harvesting enhancement in the spectra region of 400-1,000 nm and had a smaller series resistance and larger recombination resistance compared with the planar cells, yielding a higher efficiency. Additionally, in mechanical-bending tests, the flexible solar cells with micro-pyramid-structured Si light absorbers exhibited an excellent performance stability after bending for 600 cycles. Our findings lay the foundation for the real-world applications of flexible Si/PEDOT：PSS hybrid solar cells in next-generation portable electronics.

关键词： flexible devices hybrid solar cells micro-pyramid flexing test

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Flocking Control of Flying Robots considering Model’s Dynamics Processes

Flocking Control of Flying Robots considering Model’s Dynam...

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第36届中国控制会议

作者： Di jian ji haibo Li Kun Yang Kaihong Yu Wang Department of Automation University of Science and Technology of China

ISBN: (纸本)9781538629185

This paper studies the flocking problem for flying robots in three-dimensional space. Each robot’s attitude dynamics is considered. Motivated by consensus algorithms, we propose a distributed control law to achieve the flocking of flying *** convergence is proved by Lyapunov function and La Salle’s invariance principle. And the simulation results are given to demonstrate the effectiveness of the proposed control law.

关键词： Flocking Flying Robots Attitude Dynamics Synchronization

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国内商业航天对航班化重复使用运载火箭的探索实践

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宇航总体技术 2024年第4期8卷 23-30页

作者：彭小波何光辉季海波姜沂于新宇北京星际荣耀空间科技股份有限公司北京100176

为实现航天运输系统航班化的终极发展目标,从复用频次与飞行后维护检修角度调研了行业现状,提炼了面向航班化重复使用运载火箭技术的重点发展方向。首次对外公开介绍了星际荣耀垂直起降验证飞行器在复飞准备阶段的探索实践,国内商业航... 详细信息

为实现航天运输系统航班化的终极发展目标,从复用频次与飞行后维护检修角度调研了行业现状,提炼了面向航班化重复使用运载火箭技术的重点发展方向。首次对外公开介绍了星际荣耀垂直起降验证飞行器在复飞准备阶段的探索实践,国内商业航天所采用的重复使用液体火箭方案及快速复用能力得到验证。

关键词：航班化飞行后维护重复使用商业航天

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维普期刊数据库

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Cluster Consensus of Second-order Multi-agent Systems with Nonlinear Dynamics under Directed Topology

Cluster Consensus of Second-order Multi-agent Systems with N...

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第37届中国控制会议

作者： Liushuai Zheng haibo ji Department of Automation University of Science and Technology of China

This paper mainly investigates the cluster consensus problem for second-order nonlinear multi-agent systems with directed topology via pinning control *** algebraic graph theory,matrix theory,and Lyapunov stability theory,a pinning control law is designed for part of agents using the local relative measurements from their *** some sufficient conditions are also proposed to guarantee the realization of cluster ***,the control law is expanded to the special case,i.e.,the double-integrator multi-agent ***,some simulative examples are provided to verify the effectiveness of our theoretical results.

关键词： Cluster consensus Nonlinear system Second-order system Pinning control

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Finite-Time Output Consensus for Nonlinear Multi-Agent Systems under Directed Graph

Finite-Time Output Consensus for Nonlinear Multi-Agent Syste...

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第40届中国控制会议

作者： Qiang Zeng haibo ji Department of Automation University of Science and Technology of China

The finite-time output consensus problem for a class of nonlinear multi-agent systems is investigated over a directed graph. Firstly, a distributed differentiator is proposed such that the leader’s output trajectory and its first-order derivative can be derived by each follower agent. Then, to track the trajectory provided by the distributed differentiator, a continuous finitetime controller is developed based on command-filtered backstepping control. It can be demonstrated that the problem is solved under the distributed controller composed of distributed differentiator and finite-time controller. Finally, the effectiveness of the designed distributed controller is verified by an illustrated example.

关键词： Finite-time output consensus directed graph distributed differentiator command-filtered backstepping

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Attitude Tracking Control of a Quadrotor UAV Based on the Contracting Angular Velocity Observer

Attitude Tracking Control of a Quadrotor UAV Based on the Co...

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第37届中国控制会议

作者： Liu Yeqiu ji haibo Di jian Department of Automation University of Science and Technology of China

This paper investigates the problem of attitude tracking control of a quadrotor UAV,and develops a geometric controller of the attitude *** order to dealt with the actual situation that angular velocity is not always available,we introduce a contracting angular velocity observer into the controller,and analysis the stability of the complete system again by choosing an appropriate Lyapunov *** numerical examples are also presented to illustrate the performance of the developed controller.

关键词： Attitude tracking control angular velocity observer quadrotor

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Distributed Adaptive Optimal Resource Allocation over Networks of Uncertain Nonlinear Multi-agent Systems

Distributed Adaptive Optimal Resource Allocation over Networ...

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第三十九届中国控制会议

作者： Xinyu Qu Xinghu Wang haibo ji Department of Automation University of Science and Technology of China

This paper studies the distributed optimal resource allocation problem of nonlinear networks having uncertain nonlinearities. A novel distributed adaptive optimal resource allocation algorithm comprising an auxiliary optimization dynamics and an adaptive stabilizer is proposed. By constructing certain Lyapunov function, it is proved that the proposed algorithm assures the convergence of system output to the desired optimization solution of the resource allocation problem even in the presence of uncertain nonlinearities.

关键词： Distributed resource allocation multi-agent system uncertain nonlinearity adaptive control

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