数字信号处理的简单介绍文献翻译及英文原文.doc

单位代码 01 学　　号 070110105 分 类 号 密 级 文献翻译 数字信号处理的简单论述 院（系）名称 信息工程学院 专业名称 通信工程 学生姓名 徐治明 指导教师 赵春雨 2011年 4 月 5 日英文译文 数字信号处理的简单论述 冈萨雷斯数字信号处理与模拟信号处理是信号处理的子集。数字滤波器离散傅里叶变换的快速算法谱分析数字信号处理系统语音信号处理 摘自：冈萨雷斯Introduction of Digital Signal Processing 冈萨雷斯 GonzalezI. Introduction Digital signal processing is will signal to digitally says and deal with the theory and technology. Digital signal processing and analog signal processing is signal processing subset. Digital signal processing for the purpose of the real world is continuous analog signals for measurement or filtering. So in digital signal processing before need to send a signal from the analog domain into digital domain, it usually by adc realized. And digital signal processing output often will transform into analog domain, it is realized by digital-to-analog converters. Digital signal processing algorithm need to use special processing equipment such as computer or digital signal processor (DSP) and application-specific integrated circuits (ASIC), etc. Digital signal processing technology and equipment with flexible, precise and anti-jamming of strong, equipment of small size, low cost, speed such outstanding advantages, these are simulation signal processing technology and equipment and incomparable. The core of digital signal processing algorithm is discrete Fourier transform (DFT), is in the digital domain DFT signal and frequency-domain are achieved, which can use the discretization general computer processing discrete signal. And make the digital signal processing from theory to practical is fast Fourier transform (FFT), FFT appear greatly reduced the amount of computation, make DFT real-time digital signal processing becomes possible, enormously promoted the development of this discipline. Three DSP chip maker in the world: 1. Texas instruments (TI) 2. Simulator parts companies (ADI) 3. Motorola (Motorola). The three companies is almost a monopoly of general