控制的

Most of present airborne platforms are analogic control system, digital control system can improve the system general performance, digital control is the development direction of platform systems, digital control has especial techonoly, this paper focus on researching the key technologies of digital control of airborne electro-optical stable platform.

现有的机载平台大多采用模拟控制，数字控制系统能提高系统综合性能，便于系统调试，采用数字控制方式是平台系统的必然发展方向，系统辨识、控制器设计和多采样率问题的研究是数字控制系统研究的关键问题，有关机载光电稳定平台数字控制的这些关键技术研究是本文的目的。

According to the demand of controlling speed, the system give out corresponding clock pulse to control the speed of the motor through the clock pulse.

控制系统按速度控制的要求从时钟脉冲控制线发出相应的控制脉冲即可对步进电机的转速进行控制。

According to the characters of debris flow and risk controlling condition in mountain towns, The concentric circle theory of geography is introduced in this paper, The concentric circle model for debris risk control in mountain towns is discussed and the effect of "concentric circle model" in hazard risk control is analyzed.

针对山区城镇泥石流危害特征及风险控制现状，引入地理学中的同心圆理论，探讨了山区城镇泥石流风险控制的"同心圆模式"，分析了"同心圆模式"中各风险控制层对灾害风险的控制机制及效应，提出城镇泥石流风险控制应遵循多层防范、逐级降低的思路，研究可为山区城镇的减灾管理提供合理的参考。

In this paper, the application of neural networks for industrial contrail control systems is introduced and the problem of building neural network model of the nonlinear control objects is described.

介绍了神经网络在工业控制系统中的应用；论述了建立非线性被控对象的神经网络模型问题；介绍了神经网络控制的主要方案，这些方案可用于过程控制和电气传动控制系统。

Considered the characteristics of extreme nonlinearity and random for power drive systems, several novel control strategies as following for the nonlinear coupled oscillation are studied this thesis.

考虑耦合振荡的高度非线性、随机性等特点，本文研究了以下几种新型振荡控制策略：根据适应控制的思路，本文提出了反振荡适应控制方案，用电气控制手段解决机械及建筑结构的振动问题。

In this system, taking the single- chip computer89C51 as the core part and the small-type of DC motor as the control object.a double closed-loop PI control is implemented.

本文介绍了一种基于单片机控制的PWM直流电机调速系统，系统以89C51单片机为核心，以小型直流电机为控制对象，实现双闭环PI控制。

In this system, taking the single- chip computer89C51 as the core part and the small-type of DC motor as the control object.a double closed-loop PI control is implemented.

摘要本文介绍了一种基于单片机控制的PWM直流电机调速系统，系统以89C51单片机为核心，以小型直流电机为控制对象，实现双闭环PI控制。

Inthis system, taking the single- chip computer89C51 as the core partand the small-type of DC motor as the control object.a doubleclosed-loop PI control is implemented.

本文介绍了一种基于单片机控制的PWM直流电机调速系统，系统以89C51单片机为核心，以小型直流电机为控制对象，实现双闭环PI控制。

For a class of Shunt-wound Active Power Line Conditioner, based on analysis of mathematical model of system and target of control, the algorithm of fuzzy variable structure sliding mode control is presented. The control algorithm can avoid complicated calculation of harmonic electric current in traditional control algorithm, and realize the feedback control of electric current. The algorithm is simple and easily implemented.

针对一类并联型有源电网调节器在分析系统数学模型和控制目标的基础上，提出了模糊滑模控制策略，避免了传统控制方法中复杂的谐波电流计算，实现对电源电流的闭环控制，该算法简单、易于实现，仿真结果证实了变结构滑模控制的有效性。

Control chart is one of important tools for on-line quality control, but it is difficult to recognize which pattern exists on the chart.

控制图是在线质量控制的重要工具，而利用控制图进行异常过程模式识别却是个困难问题。

In this paper, the requirement analysis, design and implementation of the system are introduced in detail.

此论文详细介绍了系统的需求分析，系统设计和具体实现。

In the context of economic globalization is increasingly deepening, China's economy can not be spared.

在经济全球化日益加深的背景下，中国经济不可能做到独善其身。