Pseudo-Predictor Feedback Control for Multiagent Systems with Both State and Input Delays

This paper is concerned with the consensus problem for high-order continuous-time multiagent systems with both state and input delays.A novel approach referred to as pseudopredictor feedback protocol is proposed.Unlike the predictorbased feedback protocol which utilizes the open-loop dynamics to predict the future states,the pseudo-predictor feedback protocol uses the closed-loop dynamics of the multiagent systems to predict the future agent states.Full-order/reduced-order observer-based pseudo-predictor feedback protocols are proposed,and it is shown that the consensus is achieved and the input delay is compensated by the proposed protocols.Necessary and sufficient conditions guaranteeing the stability of the integral delay systems are provided in terms of the stability of the series of retarded-type time-delay systems.Furthermore,compared with the existing predictor-based protocols,the proposed pseudo-predictor feedback protocol is independent of the input signals of the neighboring agents and is easier to implement.Finally,a numerical example is given to demonstrate the effectiveness of the proposed approaches.

The Analysis of Global Input-to-state Stability for Piecewise Affine Systems with Time-delay

In this paper, global input-to-state stability （ISS） for discrete-time piecewise affine systems with time-delay are considered Piecewise quadratic ISS-Lyapunov functions are adopted. Both Lyapunov-Razumikhiu and Lyapunov-Krasovskii methods are used The theorems of Lyapunov-Razumikhin type and Lyapunov-Krasovskii type for piecewise affine systems with time-delay are shown respectively.

Mean-Square Exponential Input-to-State Stability of Numerical Solutions for Stochastic Control Systems

这份报纸处理随机的控制系统(SCS ) 的数字解决方案的吝啬平方的指数的 input-to-state 稳定性(expbe ) 。第一，一个有限时间的强壮的集中条件成立为，这被显示出随机 ? SCS 上的方法。那么，如果并且仅当，我们能看到 SCS 的吝啬平方的 expbe 成立的随机 ? 方法(为足够地小的步尺寸) 在有限时间的强壮的集中条件下面被保存。为有片面 Lipschitz 飘移的 SCS 的一个班，第二，它被证明那二含蓄的 Euler 方法(为任何步尺寸) 能继承 SCS 的吝啬平方的 expbe 性质。最后，数字例子证实在这研究介绍的定理的正确性。

Impact of State Equity Participation on Family Enterprises’ Innovation Input

Whether the mixed-ownership reform whereby the state invests in nonstate enterprises will be effective is a question that has attracted widespread attention and discussion.This paper uses sample data from family-owned enterprises listed from 2009 to 2016 and empirically tests the impact of equity participation by the state in the family enterprises on their innovation input and the underlying mechanisms.Our results show that state investment has positive impacts on innovation input in the family enterprises.This effect is even more significant for high-tech family enterprises and/or those family enterprises confronting high policy uncertainty.Our results also reveal that when state investment is accompanied by a greater degree of state participation in enterprise operations or when the investment originates locally,there is a greater increase in innovation input.Further analysis of the underlying mechanisms reveals that state investment increases innovation input by increasing both willingness to innovate and the resources available for innovation.This paper provides new theoretical support and empirical evidence for pushing the mixed-ownership reform and stepping up the sustainable development of non-state enterprises including family ones.

控制方向未知的受限多智能体系统的预设时间模糊控制

综合考虑受控制方向未知、输入受限和状态时延影响的有领导者多智能体系统的编队控制问题,设计基于模糊逻辑系统的预设时间一致性控制策略.为了保证编队输出误差在预设时间内满足预定的约束范围要求,引入预设时间性能函数,构造Lyapunov-Krasovskii(L-K)泛函解决状态时延问题,将外界干扰和L-K泛函的导数中的部分项定义为未知非线性函数,并利用模糊逻辑系统对其进行估计,利用Nussbaum函数和均值定理分别处理控制方向未知和输入受限问题,基于以上设计,提出预设时间模糊控制策略,并通过Lyapunov稳定性理论,分析闭环系统的有界稳定性,数值对比仿真和两级化学反应器应用仿真说明控制方法的有效性.

The Analysis of the Dynamic Equilibrium State in Linear Control System

This paper discusses not a point of equilibrium to free system,but a certain family of equilibrium state of dynami- cal system with inputs.This equilibrium state depends on the input,so it is called the dynamic equilibrium state.The expression of the dynamic equilibrium state can be given under some certain condition.With deductions and proofs in linear control system,es- tablish the expression of the dynamic equilibrium state in two cases,where the linear systems are nonsingular or singular.Also pre- sent the concept and the condition of the controllability of the dynamic equilibrium state.The controllability of the dynamic equilib- rium state is different from the controllability of the state to system,but these two are closely related.

带有状态/输入量化的无人艇航向跟踪控制

[目的]针对水面无人艇(USV)的海上通信受限的问题,提出一种带有状态/输入量化的USV航向跟踪控制方法。[方法]基于反步法设计系统控制律,结合动态面技术降低虚拟控制律的计算量膨胀问题。对于控制系统中存在的不确定项及外界干扰,利用扩张状态观测器(ESO)进行估计。采用均匀量化器分别对控制系统中的状态变量和控制输入进行量化,且量化后的状态反馈信息仅用于跟踪控制。利用量化状态递归设计基于ESO的USV航向控制器,证明闭环控制系统中量化变量和非量化变量间误差的有界性。[结果]基于李雅普诺夫稳定性理论,提出了量化误差考量及闭环系统稳定性判定方法,严格证明了所设计的带有状态量化和输入量化的USV航向跟踪控制系统的稳定性,仿真实验验证了该控制策略的有效性。[结论]结果表明,所提方法可为USV航向跟踪控制提供借鉴。

Partial Quantum Tensors of Input and Output Connections

I show how many connections of Γ?are presently existing from R?to β?as they are being inputted simultaneously through tensor products. I plan to address the Quantum state of this tensor connection step by step throughout the application presented. Also, I will show you how to prove that the connection is true for this tensor connection through its output method using a small bit of tensor calculus and mostly number theory.

基于输入−状态联合估计的漂浮式风机塔架结构载荷反演及状态分析

[目的]旨在研究波浪作用下漂浮式风机塔架的结构载荷反演方法及动力响应状态。[方法]以半潜型风机为研究对象,通过时域仿真模拟测量数据,并且基于漂浮式风机的频域仿真模型计算塔架的质量归一化模态,将二者作为输入−状态联合估计(joint input-state estimation,JIS)算法的输入,对漂浮式风机塔架开展结构载荷反演以及实时状态分析。[结果]结果表明:基于JIS算法,以塔架节点的仿真数据作为算法的输入,估计的塔根载荷以及塔架节点响应与仿真结果具有良好的一致性,实现了高精度的反演。[结论]反演结果验证了JIS算法的有效性,可以用于漂浮式风机的实时状态分析,保障漂浮式风机长期安全稳定运行。

Decentralized state observer scheme for uncertain time-delay T-S fuzzy interconnected systems

This paper focuses on a class of T-S fuzzy interconnected systems with time delays and time-varying parameter uncertainties. Observer-based output feedback decentralized controller is designed such that the closed-loop interconnected system is asymptotically stable in the Lyapunov sense in probability for all admissible uncertainties and time delays. Sufficient conditions for robustly asymptotically stability of the systems are given in terms of a set of linear matrix inequalities （LMIs）.

On the stability of two-step predictive controller based on state observer

For input saturated Hammerstein systems, the two-step predictive control strategy is adopted. The first step calculates the desired intermediate variable applying unconstrained linear modal and predictive control. The second step obtains the real-time control action by solving algebraic equation and desaturation. The case of immeasurable state is considered where the observer gain matrix is solved by Sylvester equation. The sufficient closed-loop stability condition is given and the designing and tuning algorithm for the domain of attraction is proposed. The theoretical results are validated by an example.

面向6G的信道状态信息压缩技术

提出基于人工智能的信道状态信息压缩技术方案,并全面思考了模型训练、模型管理中的标准制定、实际应用等相关问题,分析了不同问题的潜在解决方案。仿真结果表明,所提出的方案可有效提升信道状态信息反馈精度,网络容量平均提升10%左右。

带有状态/输入量化的无人船自适应模糊跟踪控制

针对海上通讯带宽受限情况下无人船的航迹跟踪控制问题,设计了一种带有状态量化和输入量化的自适应反馈跟踪控制方案。在保证有效跟踪的同时,减少执行器执行频次,降低控制幅度。首先,在不考虑量化情况下基于自适应反步法设计了系统跟踪控制律,并结合动态面技术有效降低了虚拟控制律的计算量膨胀问题。对于控制系统中存在的不确定项,利用模糊逻辑系统进行逼近。其次,采用均匀量化器分别对控制系统中的状态变量和输入变量进行量化,且量化后的状态反馈信息被用于无人船航迹跟踪控制器的设计。根据所得到的量化信息,给出了同时考虑状态量化和输入量化的无人船航迹跟踪控制律。在稳定性分析中,通过Lyapunov稳定性理论证明了在不考虑量化的情况下闭环控制系统的稳定性,并根据递归的方法证明了闭环控制系统中量化变量和非量化变量之间误差的有界性。基于给定的引理,最终证明了在同时考虑状态量化和输入量化的情况下,所设计的带有状态量化和输入量化的模糊自适应反馈跟踪控制系统的稳定性。最后,通过两组仿真实验验证了所提方案的实用性。即在同时考虑状态量化和输入量化的情况下,无人船仍能保持对理想轨迹良好的跟踪性能,并有效减轻了执行器的执行频次,更符合航海工程实践。

Channel capacity of multiple-input multiple-output systems with transmit and receive correlation

In order to investigate the impact of channel model parameters on the channel capacity of a multipleinput multiple-output （MIMO） system, a novel method is proposed to explore the channel capacity under Rayleigh fiat fading with correlated transmit and receive antennas. The optimal transmitting direction which can achieve maximum channel capacity is derived using random matrices theory. In addition, the closed-form expression for the channel capacity of MIMO systems is given by utilizing the properties of Wishart distribution when SNR is high. Computer simulation results show that the channel capacity is maximized when the antenna spacing increases to a certain point, and furthermore, the larger the scattering angle is, the more quickly the channel capacity converges to its maximum. At high SNR （〉12 dB）, the estimation of capacity is close to its true wlue. And, when the same array configuration is adopted both at the transmitter and the receiver, the UCA yields higher channel capacity than ULA.

股权激励对国企创新投入的影响研究——基于混合所有制改革背景

选取2014—2019年沪深混改国企为研究样本,实证检验高管和核心技术及业务人员股权激励与企业创新投入的关系。结果表明:非国有股权制衡在影响高管股权激励促进创新投入的作用上表现为双重调节效应,在地方国企中更为明显。高管政治晋升激励对高管股权激励与创新投入关系的影响因国企层级而不同,在地方混改国企表现为正向调节效应,在混改央企表现为负向调节效应。研究结论为高管股权激励通过公司治理渠道影响企业创新提供了证据。