查询词典 feedback control system

Singing behavior; higher vocal center; caudal nucleus; ventral hyperstriatum; hippocampus; song-control nucleus; song nuclei; area X; melatonin; gamma-aminobutyric acid; glutamic acid decarboxylase; vocal control circuitry; frequency sensitivity; organ of Corti; auditory feedback; neural plasticity; seasonal plasticity; neostriatum; anterior forebrain pathway; lateral magnocellular nucleus; anterior neostriatum; lMAN nucleus; medial nucleus; dorsolateral thalamus; robustus archistriatalis; robust nucleus; archistriatum; song motor control nucleus; vocal motor system; gila cells; nonlinear oscillatory dynamics

歌唱行为；较高级的发声中枢；尾部核；腹侧上纹体；海马；鸣唱控制核团；鸣唱核；X区域；N-乙酰-5-甲氧基色胺；γ-氨基丁酸；谷氨酸脱羧酶；发声控制回路；频率灵敏度；柯替氏器；听觉反应；神经可塑性；季节可塑性；新纹状体；前脑前端路径；侧面大细胞核群；前部新纹状体；lMAN核；内侧核；背外侧丘脑；古纹状体粗核；健康的核；原纹状体；鸣声运动控制核；发声运动系统；毒蜥细胞；非线性振动动力学首页上一页共有 12 条记录，本页从第 11 到第 12 条。

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。

This study has developed a LabVIEW-based digital control system, which features the following functions: adjustment of the distorted waveforms, pulse count to the quarter pitch, waveform subdivision by Lissajous circle, back propagation neural network and PID control, and the position feedback control of the stage.

本项研究开发了基于Labview的数字控制系统，该系统具有失真波形的调整、1/4栅距脉冲计数、基于Lissajous圆环的波形细分、后传神经网络和PID控制以及平台的位置反馈控制等特征。

Finally, based on the studies above, the characteristics of pantograph/catenary are analyzed and the active pantograph is modeled. By using the linear quadratic optimal control law, the design objective is to minimize the performance index, which is a function of the state variables representing the pantographs dynamic characteristic and the active control force. The control system is designed considering the complete state feedback.

最后，在此基础上，分析了受电弓／接触网系统的工作特点，建立了受电弓主动控制系统的数学模型，利用线性二次型最优控制策略，以给定性能指标为最小值为设计目标，性能指标为表征受电弓动力学特性的状态变量和主动控制力的函数，考虑了完全状态反馈的情况，进行了控制系统的设计。

On the basic of it chatter of cutting processes is analyzed by speed feedback and displacement delaying feedback and curial condition of stability cutting is discussed. Secondly, dynamic model of deep-hole drilling system with the two degrees of freedom are established in the light of principles of machining chatter in cutting processes.

本文针对深孔加工系统的特点，首先分析了深孔加工的力学特性，并在此基础上，根据金属切削中的颤振现象，对金属切削过程中由于速度反馈和位移延时反馈所引起的颤振现象进行了分析，并分别讨论了稳定切削的临界条件。

The feedback principle raises that any system only by using the feedback information can it realize cybernation.

一、数学教学信息传输系统的基本模式数学教学过程是在教师指导下学生学习数学知识的一种特殊认识过程

The result of the feedback experiment is mentioned: the instability oscillation was damped when the feedback system was on.

初步的反馈实验结果表明：反馈系统开启后不稳定性振荡得到抑制。

Both controllers consist of linear output feedback and nonlinear feedback, resulting in a closed-loop system with asymptotic stability in the invariant set inside the domain of attraction.

控制器由线性输出反馈项和非线性反馈项组成，使得闭环系统在包含于吸引域的不变集内渐近稳定。

Students have to study how to efficiently use the tools for performance measurement on basic circuits through observation.(3) The un-ideal performance of circuits such as frequency response and noise.(4) Feedback, Operational amplifier and the stability in feedback system.

通过观察对基本电路性能的量化建立有效的分析工具(3)频率响应和噪声等电路的非理想性的介绍(4)反馈，运放和反馈系统中的稳定性。

Next,on the knowledge of input-state feedback linearization of a nonlinear system,feedback ...

在上述的每种方法中，系统是否具有稳定性，都与原系统未定的参数有关。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。