Secondly , the reliable hx control problem of uncertain nonlinear systems with strictly redundant control elements is studied in detail . based on hji . the reliable state feedback controller and output feedback controller are presented . by considering a class of nonlinear time - varying uncertain systems with time - delay and unknown nonlinear disturbances , the linear memoryless dynamic output feedback controller based on a state observer is designed such that , for all admissible uncerntainties as well as actuator failures occurring among a prescribed subset of actuators , the closed - loop system is quadratically stable with an ha norm bound constraint 考虑到时间延迟问题广泛存在于实际系统中，因此，针对一类时滞不确定非线性系统，考虑系统的状态是不可测或者是不完全可测的，设计了基于状态观测器的线性无记忆观测状态反馈控制器，使得故障闭环系统对于任何容许的不确定性和给定执行器集合中任意执行器失效是二次稳定的且对于系统扰动h _范数有界。
The former is a robust auto - disturbance rejection controller ( adrc ) , which contains nonlinear tracking differentiator ( td ) , extended - states observer ( eso ) , nonlinear proportional derivative ( n - pd ) and compensation of unknown disturbance . the latter is using cmac & pd controller and conn & pd controller 首先,在关节空间设计了简单易行的强鲁棒性自抗扰控制器( adrc ) ,包括非线性跟踪微分器( td ) 、扩张状态观测器( eso ) 、非线性pd ( n - pd )和扰动补偿四个部分。
Abstract : the output of eso of adrc has sufficient information to identify the parameter . if the controlled plant has known part and we use this part to compensate the input of eso , the estimation precision of eso can be improved , and the precision of parameter identification can thus be improved 文摘:自抗扰控制器中扩张状态观测器的输出提供了进行系统参数辨识的足够信息，受控对象若有已知部分，把此部分补偿给扩张状态观测器输入项，能提高扩张状态观测器的逼近精度，从而也能提高其输出值来进行参数辨识的精度
Based on state observer , the problem of decentralized variable - structure stabilization is investigated for a class of uncertain linear large - scale systems with parametric perturbation and interconnections and external disturbance , the proposed design is simple and the asymptotic stability of the closed - loop systems can be guaranteed 摘要基于状态观测器，给出了具有参数摄动、关联影响和外界干扰等不确定因素影响的线性组合大系统的一种分散变结构控制器的设计方法，该控制器设计简单并能保证闭环大系统的全局渐近稳定。
Observers design is a main problem not only in the analysis and design of control systems , but also in the fields such as the control and monitoring in electrical systems - . fault detection and diagnoses in manufacturing industrial process , synchronization and secrecy in communication systems and so on 因此控制系统的状态观测器设计问题在控制理论与实际系统设计中一直是人们研究的一个主要问题，而且它在电力系统的控制与调度、工业过程的监控和调节、故障检测和诊断、通信系统的控制同步与自适应同步以及混沌系统的保密通信等领域中也有着了广泛的应用。
Abstract : the design problem of reduced - order state observer for a class of multi - input multi - output ( mimo ) nonlinear time - varying systems is studied in this paper . a new design method of nonlinear reduced - order state observer is proposed , and the exponential convergence is proved for the proposed state observer . the observer has the characteristics of that the speed of convergence is adjustable . finally , an example is given to show that this approach is effective 文摘:研究一类多输入多输出( mimo )非线性时变系统的降维状态观测器设计问题.提出一种非线性降维状态观测器设计方案，并从理论上证明了状态观测误差的指数收敛性.其中设计的降维状态观测器具有收敛速度可调的特性.最后给出了数值算例，仿真结果表明了本文方法的有效性
With different dynamic models for relative motion , two nonlinear controllers without velocity measurements are obtained . one is obtained with the exact nonlinear model by designing a filter to avoid measurements of relative velocity . using the linear model with disturbances , the other law is designed to be robust based on the linear quadratic optimal control and the state observer of linear system 基于不同的相对运动动力学模型，提出了两种无速度测量的非线性控制律：一是基于精确的非线性模型，通过使用滤波器，避免了相对速度的测量；二是采用带干扰的线性模型，在线性二次型最优控制和线性系统状态观测器的基础上，设计了一种无速度测量非线性鲁棒控制律。
In this paper , the hyperchaotic synchronization is studied , and the disadvantages of current methods of hyperchaotic synchronization are pointed out . based on the theory of state observers , a new method of the hyperchaotic synchronization is presented , and it is applied to the synchronization of hyperchaos of two identical unidirectionally coupled chuas circuits 研究超混沌系统同步问题，指出现有超混沌同步方法存在的缺点，及基于状态观测器的超混沌同步方法，并且应用于单向耦合蔡氏电路构成的超混沌系统同步设计
In this thesis , based on mathematic model and real condition , analysis and compare of different control methods are carried out at first . then a propriety control law and optimized parameters are choosen and used into multi - body model in simpack . finally , kinds of dynamic character curves after measurement and calculation are given 论文首先在数学建模的基础上，根据实际情况，详细分析对比了直接状态反馈控制、 pid控制和状态观测器控制等常用的磁浮列车悬浮控制方法，然后将合适的控制规律及优化的控制参数用于simpack中的多体模型，通过计算，给出悬浮稳定性、运行平稳性以及列车曲线通过等动力学特性曲线。
Neural - based observer is integrated with synchronization control of chaotic systems . assuming that the chaotic systems can be separated into linear and nonlinear components , a neural - based observer is constructed by tracing the nonlinear components of the system using rbf ( radial basic function ) neural networks . the synchronization control of the system is accomplished 本文将神经网络观测器与混吨同步控制问题结合起来，在假定混饨系统能够分解为线性部分和非线性部分的前提下，利用神经网络逼近混饨系统的非线性部分，设计出了一种利用pf神经网络的状态观测器，可以完成混饨系统的同步控制。
