1 Introduction Background for New methodology Modern natural science methodology is mainly based on matter and energy Even though matter and energy are still necessitate factors in information system, yet the characteristic feature of information systems, particularly the complex ones, is neither matter nor energy but information Without information, the complex information systems, like brain and intelligent life. cannot be understood

实际的数据采集系统往往需要同时 测量多种物理量或同一种物理量的多个 测量点。因此,多路模拟输人通道更具 有普遍性。按照系统中数据采集电路是 各路共用一个还是每路各用一个,多路 模拟输人通道可分为集中采集式和分散 采集式两大类型

3-1 Measures of Random Syntactic Information Shannon Theory of Information Key point: 1. Information is something that can be used to remove uncertainty. 2. The amount of information can then be measured by the amount of uncertainty it removed. 3. In the cases of communications, only waveform is concerned while meaning and value are ignored. 4. Uncertainty and thus information are statistic in nature and statistical mathematics is enough

1. Information Processing Definition of Information processing All operations exerted to the information itself for its better utilization Information processing is necessary because most of the information in its original form may not be good for use. Thus information processing is the basis of later operations Two categories of information processing: 1)Shallow Level of Information Processing 2)Deeper level of Information Processing

Problems to be concerned with 1. How should we define the concept of Information 2. What are the typical features of Information compared with matter and energy 3. What are the relationship and difference between Shannon Information and comprehensive Information 4. How to reasonably classify Information 5. How to properly represent Information

特性 符合通用串行总线(USB)1.1版规范 ·高性能USB接口器件,集成了SIE、FF0存储器、收发器以及电压调整器 的米 符合大多数器件的分类规格

本章重点是二端口网络的定义及参数，难点是二端口网络参数矩阵的求法。 1. 二端口的概念、方程及参数； 2. 各参数方程形式，参数的含义及求法； 3. 二端口转移函数及求法； 4. 特性阻抗的定义及求法； 5. 二端口等效电路的概念，等效电路的结构及参数； 6. 二端口级联、串联、并联的条件与等效参数的求法； 7. 回转器、负阻变换器的定义与特性

3.1通信信号的功率放大 3.2谐振功率放大器 3.3宽频带的功率合成(非谐振高频功率放大器) 3.4倍频器 3.5天线 3.6实训:高频谐振功率放大器的仿真与性能分析

一 、控制系统的结构图 二、控制系统的信号流图 三、控制系统的传递函数

一、传递函数的概念 二、传递函数的性质 三、典型环节及其传递函数