控制信号

At first we established an AC small-signal model of welding inverter and designed a digital controller on the basis of analyzing a typic analog welding control circuit.

本文在这部分的研究工作中，首先建立了弧焊逆变电源的交流小信号模型，并对典型的模拟控制电路进行了分析。

Through the keyboard located on the front panel it is possible to display the amplifier main measures and to set or modify the relevant thresholds and pre-settings underpower alarm, remote controls, monitoring point signals, etc.

通过位于前面板的键盘，显示放大器的主要的尺寸和设置或更改相关的开端和预设置是可能的（低压报警，遥控控制，监视要点信号，等等。

The approach can be used in the case where there exist parameter uncertainties, unmodeled dynamics and unknown bounded disturbances.

本文提出的控制方案提高了系统的鲁棒性能，使系统存在不确定性时，仍能保证全局稳定性，使闭环系统的所有信号都是有界的。

A robust adaptive control scheme was proposed for a class of nonlinear systems in the presence of unknown parameters and unmodeled dynamics. The whole design was divided into two steps.

针对一类含有不确定参数和未知扰动的非线性系统，提出一种鲁棒自适应控制方法以确保系统输出稳定地精确跟踪给定的参考信号。

An adaptive controller for multi-input cascade nonlinear system with unmodelled terms is given, the control design is based on backstepping recursive design method.

对一类含有未知参数和未建模项的多输入非线性串级系统，基于backstepping递推设计方法，进行了非过参数化自适应控制设计，得到的闭环系统的所有信号是全局有界的，并且给出了第一子系统的状态界的一个估计。

In order to predict minor stream average delay at an unsignalized intersection, a waiting delay model of mixed traffic flow composed of representative types of vehicles is set up.

为了预测公路无信号控制交叉口次要车流的平均延误时间，建立了由多种车型构成的混合交通流的行车延误模型。

Regarded unsignalized intersection as research object, Poisson distribution was introduced to describe the arrival characteristic of vehicle flow based on the analysis of traffic flow operation character.

以无信号控制平面交叉口为研究对象，在交通流运行特征分析的基础上，用泊松分布描述车辆的到达特性。

With an example, its calculation results were compared with the observation results. The conclusions suggest that this model accords with the actual traffic flow condition at the unsignalized intersection.

通过与实际观测的支路行车延误对比分析，模型计算结果与观测的延误值接近，表明该模型较为符合公路无信号控制交叉口的实际情况。

The analysis results of the model have indicated that the proportion of turning vehicles,control mode and the land-use intensity have remarkable influence on the severity of traffic accidents at unsignalized three-phase intersections.

模型分析结果表明，交叉口转弯车辆比例、控制方式和土地开发强度对无信号三路交叉口交通事故的严重程度有显著影响。

The digitally audio processor supported I2C bus which was simple and effective. Soft panel programmed by LabWindows/CVI was very friendly and wieldy. LabWindows/CVI ; Virtual instrument ;5510M-A ; Sound processing ; MCU

特别是近10年来出现的数字信号处理器，与微机软件相结合将产生强大的计算与控制能力，这使其在一定的实时性要求下取代了许多原来由硬件完成的功能并能完成许多硬件不能胜任

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。