• §1 基本概念 • §2 研究内容和方法 • §3 发展和应用 • §4 技术特点

绪论 一.数字信号处理的基本概念 1.信号 2.信号分类 3.模拟信号 4.数字信号 5.二者关系

7-1引言 一、HIR DF的特点 1、DF的设计依托AF的设计,有图表可查,方便简单。 2、相位的非线性 H(Z)的频响

5-1数字滤波器结构的表示方法 一、数字滤波器的概念 1.滤波器:指对输入信号起滤波作用的装置

3-1引言 3-2傅氏变换的几种可能形式 3-3周期序列的DFS 3-4DFS的性质 3-5DFT--有限长序列的离散频域表示 3-6DFT的性质 3-7抽样Z变换-频域抽样理论 3-8利用DFT对连续时间信号的逼近

1-1 离散时间信号-序列 1-2 线性移不变系统 1-3 常系数线性差分方程 1-4 连续时间信号的抽样

一、时域离散信号—序列

Positional Number System Number system use positional notation to represent value. The position of the character(numeral) in a character string (collection of possible numerals) indicate value as well as the character itself. Radix (base) is the number of numeral characters in the character set of positional number system. Position Weiaht is a constant that represents the value of a position. Different position has different weight. It is the integer power of radix

ISA-based data acquisition and control board accept up to 8 analog inputs, produce 2 analog outputs, accept up to 67 digital (switch) inputs address, data and select lines. In addition, a spare AND gate and two spare NOR gates are made available, along with a small breadboarding area

FLIP-FLOPS Flip-flops are digital devices that have the ability to store binary information after the excitation input has changed. They are considered to be the basic memory cell for the majority of electronic binary data storage applications. This section explores the flip-flop from a functional perspective