一、y2(k)求法 1.一阶系统:

2.1 线性连续系统的描述及其响应 2.2 奇异函数 2.3 冲激响应和阶跃响应 2.4 卷积积分

4.1 信号的正交分解与傅里叶级数 4.2 信号的频谱 4.3 傅里叶变换的性质 4.4 线性非时变系统的频域分析 4.5 傅里叶变换计算机模拟举例

2.5 控制系统的信号流图 2.6 控制系统的传递函数

§9.4 离散傅立叶变换的性质 §9.5 DFT与Z变换的关系 §9.6 快速傅立叶变换（FFT）

画出列统白接所关和 并联形式的结构图、8-6Z变换与拉普拉斯的关系(p74-p79) (一)从S平面到Z平面的映射

Can be continuous Trajectory of a space shuttle Mass density in a cross-section of a brain · Can be discrete dNa base sequence Digital image pixels Can be 1-D,2-D,·N-D For this course: Focus on a single(1-D) independent variable which we call“time

Motivation for the Laplace transform CT Fourier transform enables us to do a lot of things, e. g Analyze frequency response of lTi systems Sampling Modulation Why do we need yet another transform? One view of Laplace Transform is as an extension of the Fourier

Question: Are there sets of basic\ signals so that a) We can represent rich classes of signals as linear combinations of these building block signals b) The response of ltI Systems to these basic signals are both simp and insightful Fact: For LtI Systems(CT or dt) there are two natural choices for these building blocks Focus for now:

REMINDER: Quiz 1 will be held from 7: 30 to 9: 30 p. m. Tuesday, October 14 The quiz will cover material in Chapters 1-3 of o&w Lectures and Recitations through september 26, Problem Sets 1-3 and that part of Problem Set 4 involving problems from Chapter 3 Reading assignments