A GaAs FET Oscillator stabilized by a dielectric resonator with a feedback loop has been developed. Talking about Several Kinds of Wearing Pipelines Used in the Heavy-medium Coal Processing System 本文介绍了一种环路反馈式场效应管介质稳频振荡器.浅谈重介质选煤系统中常用的耐磨管道
Synthesis of Hydrogen Peroxide from H_2/ O_2 Plasma with Multiple Parallel Discharge Tubes and Its Application in Propene Epoxidation; A GaAs FET Oscillator stabilized by a dielectric resonator with a feedback loop has been developed. 多管并联等离子体反应器氢氧合成过氧化氢及其用于丙烯催化环氧化反应的研究本文介绍了一种环路反馈式场效应管介质稳频振荡器。
Design of a Tracking Control System for Antenna Stabilized Platform Based on Quantitative Feedback Theory 基于定量反馈理论的天线稳定平台跟踪控制系统设计
The results show that if the solution of the H_ ∞ control problem exists, the original system can be robustly stabilized by a state feedback control. 结果表明:若该H∞状态反馈控制问题有解,则原系统可以通过状态反馈实现鲁棒镇定。
In the case the bounds of uncertainty are unknown, the large-scale composite systems can be asymptotically stabilized via decentralized adaptive output feedback controller. 针对不确定项界未知的情形,通过设计自适应输出反馈控制器,使系统渐近稳定。
Furthermore, a sufficient condition under which the interconnected system can be stabilized via feedback con-trol on the grounds of the estimated state vector is derived. 同时,给出了组合系统经估计状态向量的反馈控制可实现分散镇定的一个充分条件。
Furthermore, when another matrix inequality is satisfied, the system with unknown disturbance can be quadratically stabilized with a disturbance attenuation under static state feedback control by a innovative passive control method. 而在系统含有外界未知扰动时,结合基于离散时间系统的无源性控制方法,同样只需满足一个矩阵不等式,便可通过状态的静态反馈控制使得闭环系统达到理想的干扰抑制作用。
In this paper the condition under which the system can be stabilized by decentralized state feedback with arbitrary feedback structure is presented first, then a simple and effective approach for updating the feedback structure such that the stabilizability condition can be satisfied is given. 本文首先推导出在任意反馈结构下,分散状态反馈可镇定的条件,然后给出一个简单而有效的方法,用以修改原有的反馈结构,使得系统能被镇定。
Based on this ( notion) and the invariance principle, a condition is proposed and proved, under which an invariant set of states of a switched ( system) with Lyapunov stable subsystems can be stabilized by state feedback. 基于这个不变性原理以及输入对系统能量函数稳定的概念,利用多Lyapunov函数方法提出并证明了一类具有Lyapunov稳定子系统的切换系统的不变集可状态反馈镇定的条件。
With the DC/ DC converter, the low voltage output of the fuel cell is converted to a stabilized high DC and the high DC is inverted to sinusoidal AC voltage by the double loop controlled DC/ AC inverter with the instantaneous voltage and current feedback control. DC/AC逆变器采用基于电压电流瞬时值反馈的双闭环控制,将高压直流电逆变为正弦交流电。存在K&Suslin树+ZF+┐AC。
Examples are given to illustrate the results. The results in this paper show that two systems can be easily harmonically stabilized under self-feedback and interconnected feedback. 本文结果表明,在自反馈与关联反馈下两个系统之间很容易实现协调稳定。
An immediate consequence of our result is that if a nonlinear system has relative degree and its zero dynamics is asymptotically stable in approximation, then it can be stabilized by dynamic output feedback. 本文主要结果的直接推论是零动态逼近渐近稳定的最小相位系统能用动态输出反馈镇定。
For a given control system, it is possible that the system may not be stabilized by pure decentralized state feedback, and its feedback structure has to be changed. 给定一个系统,在完全分散的状态反馈下,系统可能不能被镇定,这就要求改变系统的反馈结构。
For a wide class of systems which can be stabilized by using local state feedback, we prove that it can be arbitrarily assigned convergent rate. 对一类较广的可局部镇定的大系统,本文证明它们是可以任置稳定度的。
This paper gives a necessary and sufficient condition for a class of large scale systems to be stabilized by local state feedback. 本文给出了一类线性定常大系统可局部镇定的充要条件。
Using this approach, a class of large-scale interconnected systems, which can be stabilized by local decentralized feedback, are obtained. 利用这种方法,得到了可以用局部分散状态反馈镇定的一类大系统。
A Highly Stabilized GaAs FET Oscillator Using a Dielectric Resonator Feedback Circuit 采用介质谐振器的高稳定度GaAsFET振荡器
According to the condition given in this paper, a perturbed interconnected system can still be stabilized by using a local state feedback control law which is the modified one of the control law designed for a decentralized system without parameter perturbations. 应用这个条件,有可能通过对系统不存在参数摄动时的控制律的修正,而使分散控制系统在参数摄动时可仍保持稳定。
The result is that if the value of the uncertain parameters of the state equation are constrained in the known compact bounding sets, the system can be stabilized with the obtained observer and feedback control law. 结果表明,如果状态方程的不确定参数值限定在已知有界紧集内,则可用得到的观测器与反馈控制律对系统进行镇定。
Through the robust stabilization of singular systems being investigated, the closed loop system is to be robust stabilized by proportional and derivative output feedback. And the step of computing feedback controller is given. Finally, an example is given to illustrate the validity of our method. 通过对广义系统的鲁棒稳定性分析,利用比例导数输出反馈的方法使得闭环广义系统是鲁棒稳定的,并给出了鲁棒稳定控制器的设计方法,最后通过数值例子说明了该方法的有效性。
For the stabilized voltage module, there is a constant voltage circuit which has the feature of over-current protection. Through the feedback of circuit, voltage can be controlled automatically. 稳压模块设计了过流保护及反馈电路,具有自动调节电压的功能。
The dual-mode control strategy and the invariant set theory are used. Outside the invariant set, predictive control law is solved by PSO algorithm. Inside the invariant set, the system states are stabilized gradually by linear state feedback control. 该方法采用双模控制策略,在不变集外,利用PSO算法优化求解预测控制律,使系统状态进入不变集;在不变集内,利用线性状态反馈使系统状态渐近稳定。
It is a basis for the correction of optical fiber length drift and the transmission of phase stabilized local oscillator by feedback controlling the delay of optical fiber using coherent heterodyne signal. 为最终通过干涉拍频信号反馈控制相位的延迟、校准光纤的长度漂移以及实现本振信号的稳定传送奠定了基础。
The mobile robot, as a typical nonholonomic system, cannot be stabilized using smooth linear feedback, control of such system has been a hot topic in the research of robotic community. Many elegant control strategies have been proposed for tracking control of mobile robot. 作为具有非完整约束的典型系统&移动机器人,并不能通过光滑线性时不变状态反馈控制方法实现系统的镇定,近年来许多学者就机器人轨迹跟踪控制提出了许多优秀的控制策略。