Convergence Issues Synthesis equation: None. since integrating over a finite interval Analysis Equation: Need conditions analogous to CTFT, e. g

Result: Linear phase e simply a rigid shift in time, no distortion Nonlinear phase e distortion as well as shift DT

一、信号的描述 二、信号的自变量变换 三、基本信号 四、系统及其数学模型 五、系统的性质

上海交通大学：《信号与系统 Signals and Systems（B类）》教学资源_课程教学大纲（徐昌庆）

上海交通大学：《信号与系统 Signals and Systems（B类）》教学资源_信号与系统实验

I.周期信号的频域分析 II.LTI系统的频域分析 III立叶级数的性质

1. DTFT Properties and Examples 2. Duality in fs& ft 3. Magnitude/Phase of Transforms and Frequency Responses

Another(important! ) example: Periodic Impulse train n(t)=∑(t Sampling function important for sampling .2T

Convolution Property 0(t)=h(t)*(t)←→Y(j)=H(ju)X( where h(t)←→H(ju) A consequence of the eigenfunction property