出版时间:2012-8 出版社:清华大学出版社 作者:米特拉 页数:952 字数:33000 译者:彭启琮
内容概要
Sanjit
K.Mitra所著的《数字信号处理(基于计算机的方法第4版清华版双语教学用书)》增加了一些新的内容,压缩了一些已有的内容,对有些材料作了重新安排。我们相信,新版本里每章材料的安排更加符合逻辑,新增加的一些例题,有助于说明新的困难的概念。本书很重要的一个特点是,深度使用MATLAB,通过说明该程序的强大功能的例题,来解决信号处理的问题。本书使用一种三段式的教学方法结构,充分利用MATLAB的优越性,力求避免用“照猫画虎”的方法来求解问题的缺憾。
作者简介
作者:(美国)米特拉(Sanjit K.Mitra)译者:彭启琮
书籍目录
前言
第1章 信号与信号处理
第2章 时域中的离散时间信号
第3章 频域中的离散时间信号
第4章 离散时间系统
第5章 有限长度的离散变换
第6章 Z变换
第7章 变换域中的LTl离散时间系统
第8章 数字滤波器的结构
第9章 IlR数字滤波器设计
第10章 FlR数字滤波器设计
第11章 DSP算法实现
第12章 分析有限字长效应
第伯章 多采样率数字信号处理基础
第14章 多采样率滤波器组及小波
附录A 模拟低通滤波器设计
附录B 模拟高通、带通、带阻滤波器的设计
附录C 离散时间随机信号
参考书目
索引
选译部分
章节摘录
版权页: 插图: 4.42 Determine the total solution for n ≥ 0 of the difference equation with the initial condition y[-1] = 5. 4.43 Determine the total solution for n ≥ 0 of the difference equation with the initial condition y[-1] = 3, and y[-2] = 0. 4.44 Determine the total solution for n > 0 of the difference equation with the initial condition y[-1] = 3, and y[-2] = 0, when the forcing function is x[n] = 3nμ[n]. 4.45 Determine the impulse response h[n] of the LTI system of Problem 4.42. 4.46 Determine the impulse response h [n] of the LTI system of Problem 4.44. 4.47 Determine the step response of an LTI discrete-time system characterized by an impulse response h[n] =(-α)nμ[n], 0 < α < 1. 4.49 Let a causal IIR digital filter be described by the difference equation of Eq. (4.32) where y[n] and x[n] denotethe output and the input sequences, respectively. If h [n] denotes its impulse response, show thatFrom the above result, show that Pn = h[n] dn. 4.50 Consider a causal FIR filter of length L + 1 with an impulse response given by {g[n]}, n = 0, 1 L. Developthe difference equation representation of the form of Eq. (4.32) where M + N = L of a causal finite-dimensionalIIR digital filter with an impulse response {h[n]} such that h[n] = [n] for n = 0, 1…L. 4.51 Compute the output of the accumulator of Eq. (4.2) for an input x[n] = nμ[n] and the following initial condi-tions: (a) y[-1] = 1, (b) y[-1] = -1, and © y[-1] = 0. 4.52 In the rectangular method of numerical integration, the integral on the right-hand side of Eq. (4.61) is expressed as Develop the difference equation representation of the rectangular method of numerical integration. 4.53 Develop a recursive implementation of the time-varying linear discrete-time system characterized by 4,54 Show that the sequence u [n] = zn, where z is a complex constant, is an eigenfunction of an LTI discrete-timesystem. Is the sequence v[n] = znμ[n] with z a complex constant also an eigenfunction of an LTI discrete-timesystem? Justify your answer.
编辑推荐
《数字信号处理:基于计算机的方法(第4版)》使用一种三段式的教学方法结构,充分利用MATLAB的优越性,力求避免用“照猫画虎”的方法来求解问题的缺憾。
图书封面
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