反馈控制系统

Exact linearization problems of general nonlinear control systems were discussed. At first, it defined an adjoint system by introducing an affine nonlinear system.

摘 要：讨论了一般非线性控制系统状态方程无反馈精确线性化及反馈精确线性化。

Also, the effect of state estimation error and delay to the maximum communication interval is analyzed.

分别在状态反馈、输出反馈和离散情况下，研究了基于状态预估的网络控制系统的建模、稳定性分析、控制器设计和仿真，分析了数据链路的增加，状态估计误差和延时对最大通讯间隔的影响。

This paper researches on the normal form and synchronization of strict-feedback and general strict-feedback chaos systems.

本论文主要对严格反馈和广义反馈混沌系统的标准型和同步控制进行研究。

The study demonstrates that there are four ways to expand the bandwidth of servo control system of the electro-optical theodolite: 1 Improving the free vibrancy natural frequency of optical-electronic theodolite; 2 To compensate the structural syntony ; 3 Using electric current feedback; 4 Using acceleration and velocity feedback.

研究表明，提高光电经纬仪伺服控制系统带寛有4个途径：1）增大光电经纬仪固有频率；2）对结构谐振进行补偿；3）使用电流反馈；4）使用加速度和速度反馈等。

The teachability, which is a problem of driving the states of a hybrid system to a given region, is realized by designing a state feedback controller of Petri net, the firing conditions of transitions and the controller of the continuous system.

研究了系统的可达性问题，通过设计受控Petri网状态反馈控制、变迁的激发条件和连续系统的控制器，实现系统的可达性，即驱动混合系统的状态进入某一预先给定的状态区域。

First the passivity of motor rotor flux subsystem is proved. Workless forces have no influence on the energy balance equation and have no effect on the asymptotic stability. Then it is discussed that the system can stably track the reference rotor flux without rotor flux observer. At last an adaptive PBC strategy is proposed with regard to the rotor resistance change. A clear and simple design for the speed control subsystem with inner current loops is presented.

证明了感应电机转子磁链子系统的无源性，找到系统能量耗散特性方程中的无功力，它不会影响系统的稳定性，得出无需转子磁链观测反馈即能稳定跟踪转子磁链的参考值，同时考虑电机转子电阻在运行中发生未知变化，设计自适应调节器使系统对转子电阻呈现鲁棒性，构建了带电流内环速度控制系统。

In the cochlear model, the model of the anteroventral cochlear nucleus is used to get the sychrony spectrum, the model of the posteroventral cochlear nucleus is used to get the firing rate spectrum and to detect the pitch.

对于中枢听觉系统：提出一个上橄榄复合体到耳蜗外毛细胞的自适应反馈控制模型，这个反馈由同步谱制导，实现了对刺激频率的选择注意，自适应于环境和语音的变化。

The servo controller regards TI Company DSP chip TMS320LF2407A as the main chip,has adopted standard ISA bus structure,has high -integration and high-agility,has accomplished in real-time complex boolean calculation and control algo- rithms during motion control,and can be used to realize high-speed and high-accuracy servo control for mul- tiple axis.

O前言以DSP为核心的多轴伺服控制器越来越广泛地应用在运动控制系统中，上位机只需对被控对象实施总体的控制和管理，而位置反馈信号的采集，闭环控制计算及控制量的输出均由伺服控制器完成，具有运算速度快，支持复杂的运动算法的特点，能实现高速度、高精度的位置伺服或轨迹

At the beginning of 1990"s, backstepping was developed by Kokotovic and his copartners, it is a kind of circulative nonlinear design method that uses systematic way to construct feedback method and simultaneous correlative control Lyapunov function and so more and more scholars pay attention to it. Because it has very good flexibility, people can use "good" nonlinear item through introducing nonlinear damping to control "bad nonlinear item. Now backstepping design method is one of the most effective methods to settle control problems in nonlinear system with uncertainty.

20世纪90年代初，出现了以Kokotovic及其合作者发展起来的backstepping设计方法，它是一种运用系统化的方式同时构造反馈控制律和相关联的控制李雅普诺夫函数的循环非线性设计方法，近年来引来了越来越多的学者的高度重视，它具有很好的设计柔韧性，设计者可利用&好的&非线性项，通过增加非线性阻尼来控制&坏的&非线性项，是目前解决不确定非线性系统控制问题的最有效途径之一。

Based on the property and performance requirement of hydraulic simulator, the identification results of nominal models and their uncertainty bounds of single channel systems in inner and outer gimbals as well as the flexible and systematic robust controller design frame provided byμ-synthesis, the robust feedback controllers withμ-synthesis are designed for single channel systems in hydraulic simulator's inner and outer gimbals.

根据液压仿真转台的特性和性能要求，结合内、外框单通道系统名义模型及不确定性界的辨识结果，利用H∞控制理论中的μ综合法能够提供灵活的和系统化的鲁棒控制器设计构架的特点，对液压仿真转台内、外框单通道系统进行了μ综合法鲁棒反馈控制设计。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。