数字信号处理: 是20世纪60年代，随着信息学科和计算机学科 的高速发展而迅速发展起来的一门新兴学科。它 的重要性日益在各个领域的应用中表现出来。 其主要标志是两项重大进展，即快速傅里叶变 换(FFT)算法的提出和数字滤波器设计方法的完善

数字信号处理基本概念 数字信号处理的特点 数字信号处理基本方法 数字化信号的输出

9.18255A可编程外围接口芯片 9.2PS-2304数字量I/0接口板简介 9.3BCD码并行数字信号的采集 9.4车速脉冲信号的采集计数

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

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

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

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

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]}

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

1离散时间信号分类 2离散时间系统时域特性互连