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

The dtft provides a frequency-domain representation of discrete-time signals and lti discrete-time systems Because of the convergence condition, in many cases. the dtft of a sequence may not exist as a result. it is not possible to make use of such frequency-domain characterization in these cases Copyright C 2001, S K. Mitra

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

Discrete-Time Systems A discrete-time system processes a given input sequence x[] to generates an output sequencey[n] with more desirable properties In most applications, the discrete-time system is a single-input, single-output system:

Sound knowledge of linear algebra and calculus Signals and systems (ECE 351 and ECE 352 or equivalent courses) Basic Matlab programming skillsRequirements

一、滤波器的图示及分析 二、等效结构 三、基本的FIR滤波器结构 四、基本的IIR滤波器结构 五、基本结构的MATLAB实现 六、全通滤波器 七、IIR和FIR的格型结构

一、频率响应 二、传输函数 三、简单滤波器 四、一些特殊的传输函数

1离散时间信号分类 2离散时间系统时域特性互连

1.1 状态空间描述的概念 1.2 系统的一般时域描述化为状态空间描述 1.3 系统的频域描述为状态空间描述 1.4 据状态变量图列写线性系统的状态空间描述 1.5 据系统方块图导出状态空间描述 1.6 将状态方程化为规范形式

一、填空题 （每题 3 分，共 15 分） 1．80μF