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Finite-Time Consensus of Second-Order Multiagent systems with Input Saturation via Hybrid Sliding-Mode Control

IEEE Transactions on Automation Science and Engineering 2025年 22卷 14623-14632页

作者： Jiang, Xiaowei Jiao, Ranran Li, Bo Zhang, Xianhe Yan, Huaicheng China University of Geosciences School of Automation Hubei Key Laboratory of Advanced Control and Intelligent Automation of Complex Systems Engineering Research Center of Intelligent Geodetection Technology Ministry of Education Wuhan430074 China Ministry of Education Key Laboratory of System Control and Information Processing Shanghai200240 China Anhui University of Finance and Economics School of Finance Bengbu233030 China Hubei Normal University School of Electrical Engineering and Automation Huangshi435002 China East China University of Science and Technology Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of Education Shanghai200237 China

This paper addresses the finite-time consensus (FTC) issue for second-order multi-agent systems (MASs) with nonlinear disturbances. To tackle the challenges posed by increasingly complex communication environments, an innovative integral sliding-mode surface is designed using event-triggered control. Furthermore, the study explores communication constraints between the leader and followers, employing impulsive control to facilitate communication only at specific intervals. A novel hybrid integral sliding-mode control protocol is advanced for the second-order MASs, which effectively eliminates the "Zeno phenomenon" and notably reduces both communication frequency and energy consumption, thereby enhancing overall communication efficiency. Ultimately, the efficacy of the put forward protocol is verified through simulation examples including comparison experiment. © 2004-2012 IEEE.

关键词： Protocols Sliding mode control Event detection Multi-agent systems Costs Training Topology Switches Sufficient conditions Stability analysis

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Overcoming user-rate limit of quantum network

arXiv

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arXiv 2025年

作者： Xu, Yuehan Zhang, Qijun Zhang, Junpeng Liao, Xiaojuan Shen, Ziyi Liu, Xu Zhang, Beibei Tan, Zicong Zhou, Zehao Dai, Jisheng Jiang, Xueqin Huang, Peng Wang, Tao Zeng, Guihua State Key Laboratory of Advanced Optical Communication Systems and Networks Center of Quantum Sensing and Information Processing Shanghai Jiao Tong University Shanghai200240 China College of Information Science and Technology Donghua University Shanghai201620 China Shanghai Research Center for Quantum Sciences Shanghai201315 China Hefei National Laboratory Hefei230088 China

Quantum networks revolutionize the way of information transmission and are an essential step in building a quantum internet. Generally, the information capacity per user-channel in a quantum network drastically decreases with the increase of network capacity, making it difficultly scale to large-user scenarios. To break this limit, we develop a quantum network architecture in which the information capacity per user-channel is independent of the network capacity (NCI-QN), and all previous quantum networks can be regarded as special examples. Three aspects are investigated. Firstly, a quantum network scheme formulated in a comprehensive multi-mode time-frequency representation is presented. Then, information characteristics of the proposed quantum network are delineated by expanding the well-known Pirandola-Laurenza-Ottaviani-Banchi (PLOB) bound and the Holevo bound from the linear combination of point-to-point links to a complex network architecture, demonstrating clear proofs of the network capacity independence. Finally, a practical NCI-QN with a network capacity of 19 is experimentally demonstrated using optical frequency comb in quantum key distribution network scenarios, in which the security under the asymptotic case, finite-size effect, composable security, and composable finite-size security are verified, with a secret key rate up to 8.75 Gbps. This achievement overcomes the user-rate limit of quantum network, which is the keystone for the development of the quantum internet. Copyright © 2025, The Authors. All rights reserved.

关键词： Quantum cryptography

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Hybrid quantum private communication with continuous-variable and discrete-variable signals

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Science China(Physics,Mechanics & Astronomy) 2015年第2期58卷 14-20页

作者： LIU WeiQi PENG JinYe WANG Chao CAO ZhengWen HUANG Duan LIN DaKai HUANG Peng ZENG GuiHua College of Information Science and Technology Northwest University State Key Laboratory of Advanced Optical Communication Systems and Networks and Center of Quantum Information Sensing and ProcessingShanghai Jiaotong University

The quantum key distribution(QKD) has been entering the practical application era. Subsequently, hybrid quantum private communication with discrete-variable signals, continuous-variable signals, and classic optical signals becomes inevitable in the practical scenario. In this paper, we experimentally investigated the mutual effects between the discrete-variable QKD(DVQKD) and the continuous-variable QKD(CVQKD) via a fiber channel. The experimental results show that the DVQKD will be influenced by the continuous-variable quantum signals and classic optical signals, while the CVQKD is not sensitive to the discrete-variable quantum signals.

关键词： hybrid quantum private communication Gaussian-modulated CVQKD protocol BB84 protocol mutual influences

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A NEURAL-NETWORK-BASED IDENTIFICATION OF ENVIRONMENTS MODELS FOR COMPLAINT CONTROL OF SPACE ROBOTS

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IEEE TRANSACTIONS ON ROBOTICS AND AUTOMATION 1993年第5期9卷 685-697页

作者： VENKATARAMAN, ST GULATI, S BARHEN, J TOOMARIAN, N Nonlinear Science & Information Processing Group Robotic Systems & Advanced Computing Section Jet Propulsion Laboratory/California Institute of Technology Pasadena CA USA

Many space robotic systems would be required to operate in uncertain or even unknown environments. In the paper, the problem of identifying such environments for compliance control is considered. In particular, neural networks are used for identifying environments that a robot establishes contact with. Both function approximation and parameter identification (with fixed nonlinear structure and unknown parameters) results are presented. The environment model structure considered is relevant to two space applications: cooperative execution of tasks by robots and astronauts, and sample acquisition during planetary exploration. Compliant motion experiments have been performed with a robotic arm, placed in contact with a single degree-of-freedom electromechanical environment. In the experiments, desired contact forces are computed using a neural network, given a desired motion trajectory. Results of the control experiments performed on robot hardware are described, along with relevant discussions.

关键词： Neural networks Robot control Orbital robotics Force measurement Parameter estimation Space technology Uncertainty Stability Function approximation Computer networks

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Balancing four-state continuous-variable quantum key distribution with linear optics cloning machine

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Chinese Physics B 2017年第11期26卷 97-103页

作者：吴晓东廖骎黄端吴湘华郭迎 School of Information Science and Engineering Central South University State Key Laboratory of Advanced Optical Communication Systems and Networks Center of Quantum Information Sensing and ProcessingDepartment of Electronic Engineering Shanghai Jiao Tong University School of Engineering and Information Technology University of New South Wales

We show that the secret key generation rate can be balanced with the maximum secure distance of four-state continuous-variable quantum key distribution（CV-QKD） by using the linear optics cloning machine（LOCM）. Benefiting from the LOCM operation, the LOCM-tuned noise can be employed by the reference partner of reconciliation to achieve higher secret key generation rates over a long distance. Simulation results show that the LOCM operation can flexibly regulate the secret key generation rate and the maximum secure distance and improve the performance of four-state CV-QKD protocol by dynamically tuning parameters in an appropriate range.

关键词： four states linear optics cloning machine quantum key distribution

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Secret key rate of continuous-variable quantum key distribution with finite codeword length

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Science China(information Sciences) 2023年第8期66卷 150-151页

作者： Yan FENG Runhe QIU Kun ZHANG Xue-Qin JIANG Meixiang ZHANG Peng HUANG Guihua ZENG School of Information Science and Technology Donghua University School of Electronics and Information Soochow University School of Information Engineering Yangzhou University State Key Laboratory of Advanced Optical Communication Systems and Networks Center of Quantum Sensing and Information Processing (QSIP) Shanghai Jiao Tong University

In recent years, continuous-variable quantum key distribution(CV-QKD) has been proposed as a promising alternative to the most commonly implemented discrete-variable QKD [1]. A typical CV-QKD system includes mainly tw...

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Weak value amplification via second-order correlated technique

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Chinese Physics B 2016年第2期25卷 58-61页

作者：崔挺黄靖正刘翔曾贵华 State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Key Laboratory on Navigation and Location-based Serviceand Center of Quantum Information Sensing and Processing Shanghai Jiao Tong University Shanghai Key Laboratory of Aerospace Intelligent Control Technology Shanghai Institute of Spaceflight Control Technology College of Information Science and Technology Northwest University

We propose a new framework combining weak measurement and second-order correlated technique. The theoretical analysis shows that weak value amplification （WVA） experiment can also be implemented by a second-order correlated system. We then build two-dimensional second-order correlated function patterns for achieving higher amplification factor and discuss the signal-to-noise ratio influence. Several advantages can be obtained by our proposal. For instance, detectors with high resolution are not necessary. Moreover, detectors with low saturation intensity are available in WVA setup. Finally, type-one technical noise can be effectively suppressed.

关键词： weak measurement two-dimensional second-order correlated function

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Practical security of continuous-variable quantum key distribution under finite-dimensional effect of multi-dimensional reconciliation

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Chinese Physics B 2018年第5期27卷 101-107页

作者： Yingming Zhou Xue-Qin Jiang Weiqi Liu Tao Wang Peng Huang Guihua Zeng State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Key Laboratory on Navigation and Location-based Service and Center of Quantum Information Sensing and Processing(QSIP)Shanghai Jiao Tong UniversityShanghai 200240China College of Information Science and Technology Northwest UniversityXi'an 710127China School of Information Science and Technology Donghua UniversityShanghai 201620China

The well-known multi-dimensional reconciliation is an effective method used in the continuous-variable quantum key distribution in the long-distance and the low signal-to-noise-ratio *** virtual channel employed to exchange data is generally established by using a finite-dimensional rotation in the reconciliation *** this paper,we found that the finite dimension of the multi-dimensional reconciliation inevitably leads to the mismatch of the signal-to-noise-ratio between the quantum channel and the virtual channel,which may be called the finite-dimension *** an effect results in an overestimation on the secret key rate,and subsequently induces vital practical security loopholes.

关键词： multi-dimensional reconciliation finite-dimensional effect continuous-variable quantum key distribution

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Continuous-variable quantum key distribution based on continuous random basis choice

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Chinese Physics B 2018年第7期27卷 214-219页

作者： Weiqi Liu Jinye Peng Peng Huang Shiyu Wang Tao Wang Guihua Zeng College of Information Science and Technology Northwest UniversityXi＇an 710127China State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Key Laboratory on Navigation and Location-based Serviceand Center of Quantum Information Sensing and Processing（QSIP）Shanghai Jiao Tong UniversityShanghai 200240China

Gaussian-modulated coherent state quantum key distribution is gradually moving towards practical application. Generally, the involved scheme is based on the binary random basis choice. To improve the performance and security, we present a scheme based on a continuous random basis choice. The results show that our scheme obviously improves the performance, such as the secure communication distance. Our scheme avoids comparing the measurement basis and discarding the key bits, and it can be easily implemented with current technology. Moreover, the imperfection of the basis choice can be well removed by the known phase compensation algorithm.

关键词： continuous-variable quantum key distribution basis choice

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Low power consumption reduced state and transition MLSE in optical interconnects

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Science China(information Sciences) 2023年第10期66卷 325-326页

作者： Weihao NI Fan LI Wei WANG Zhibin LUO Xingwen YI Yi CAI Zhaohui LI School of Electronics and Information Technology Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems Sun Yat-sen University Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Jiangsu Engineering Research Center of Novel Optical Fiber Technology and Communication Network Suzhou Key Laboratory of Advanced Optical Communication Network Technology Soochow University

Intensity modulation/direct detection(IM/DD) optical fiber communication system is an appropriate candidate for optical interconnect applications due to its low cost and low power consumption characteristics [1]. 4-level pulse amplitude modulation(PAM-4) is widely discussed in optical interconnects due to its simpler transceiver configuration and implementation [2].

关键词： Optical interconnects

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