§3-9 Parseval 定理 功率谱与能量谱

§4-5 调制与解调

§5.10 系统的框图模拟 § 5-11 信号流图（由 s 域的框图简化而来）

重庆三峡学院：《化学反应工程》教学资源（电子教案）第二章 均相反应动力学基础（单一反应速率式的解析）

§7.1 离散时间信号的描述 §7.2 抽样定理 §7.3 离散时间系统的描述和模拟

§7.4 离散系统的零输入响应 §7.5 离散系统的零状态响应

The output y[n] of a frequency-selective LTI discrete-time system with a frequency response exhibits some delay relative to the input x[n] caused by the nonzero phase response of the system

Example - Determine the DTFT of Let We can therefore write From Table 3.1, the DTFT of x[n] is given by

Transform-Domain Representation of Discrete-Time Signals Three useful representations of discrete-time sequences in the transform domain: Discrete-time Fourier Transform (DTFT) Discrete Fourier Transform (DFT) z-Transform

BIBO Stability Condition - A discrete-time LTI system is BIBO stable if the output sequence {y[n]} remains bounded for any bounded input sequence{x[n]}