2.1兼容制传送方式 2.1.1兼容的必要条件 1所传送的电视信号中应有亮度信号和色度信号两部分。 2彩色电视信号通道的频率特性应与黑白电视通道频率特性基本一致

In the chapter we shall introduce some two-terminal element which have properties, which are quite different than those of the resistor. These elements are the inductor and capacitor. The inductor and capacitor are passive elements, which are capable of storing and delivering finite amounts of energy

In the chapter we present resistive circuit analysis methods. The first is based on KCL and determines all the node-to-datum voltages in a given circuit and is known as node analysis. The second method, based on KVL, determines all loop current and is known as loop analysis. After discussing superposition, we will introduce Thevenin's and Norton's theorems

第一节电力负荷与负荷曲线 第二节三相用电设备组计算负荷的确定 第三节单相用电设备组计算负荷的确定

4.5.1系统设计的原则与基本步骤 4.5.2BAS的组成与系统结构 4.5.3BA的实现方案 4.5.4系统规模的划分 4.5.5组建系统的一般原则 4.5.6BAS的功能要求 4.5.7监控点一览表的编制 4.5.8BAS的电源 4.5.9BAS的接地 4.5.10BAS的线路选择与敷设

1. Establish a normal tree. tree branches--Us, C(, R) cot ree(chords)-i,,(, R) 2. Assign voltage and current variables. Assign a voltage (with polarity reference) to every capacitor and a current(with arrow) to every inductor; there are the state variables. Indicate the voltage across every tree branch and the current through every link in terms of the source voltages, source currents,and the state

The set of variables is a hybrid set that may include both currents and voltages. They are the inductor currents and the capacitor voltages. Each of these quantities may be used directly to express the energy stored in the inductor or capacitor at any instant of time. They collectively describe the energy state of the system. They are called the state variables

第一部分数控技术的基本概念 1.1数控与数控机床 1.概念数控:数字控制(NCNumerical Control),以数字化信息对机床运动及加工过程进行控制的一种方法。NC已成为数控加工的专用术语

使学生通过学习本节内容，了解选择控制系统的基本概念，理解选择控制系统的几种类型及应用

5.1 前馈控制系统的特点 5.2 前馈控制系统的几种主要结构形式 5.2.1 单纯的前馈控制系统