
| 本书包含用于分析和设计离散系统信号处理的工具,适合用做一学期的“数字信号处理”课程,读者对象为本科高年级学生或一年级研究生,也可供工程技术人员或科技人员自学使用。 本书使用了大量基于MATLAB的实例,以演示MATLAB解决信号处理问题的能力,从日常生活出发引出信号处理的问题,并给出实际应用,帮助理解信号处理概念。强调掌握概念与工具,而非数学推导,论述几个关键主题:模拟滤波器的设计、数字滤波器的结构与设计、快速傅里叶算法等。 |
| Sanjit K. Mitra:于加州大学伯克利分校获得电子工程专业的硕士和博士学位,并于芬兰坦佩雷理工大学获得名誉技术博士。先后供职于康奈尔大学美国电话电报公司贝尔实验室、加州大学戴维斯分校、圣巴巴拉分校(电气和计算机工程系教授)。Mitra博士发表了500多篇期刊和会议论文,出版了11本书籍并持有5项专利。1986年开始担任电气和电子工程师协会电路与系统学会主席。他获得了许多著名的工业和学术奖。此外,他是芬兰科学院院士,电气和电子工程师协会、美国艺术与科学研究院和美国国家光学工程学会会士,欧洲信号、语音和图像处理协会和美国工程教育协会会员。 |
| 1 Signals and Signal Processing 1 1.1 Characterization and Classification of Signals 1 1.2 Typical Signal Processing Operations 3 1.2.1 Simple Time-Domain Operations 3 1.2.2 Filtering 4 1.2.3 Multiplexing and Demultiplexing 6 1.2.4 Signal Generation 6 1.3 Examples of Typical Signals 7 1.4 Typical Signal Processing Applications 11 1.4.1 Sound Recording Applications 11 1.4.2 Musical Sound Synthesis 19 1.4.3 Echo Cancellation in Telephone Networks 21 1.5 Why Digital Signal Processing? 23 2 Discrete-Time Signals and Systems 27 2.1 Discrete-Time Signals 27 2.1.1 Time-Domain Representation 28 2.1.2 Operations on Sequences 31 2.1.3 Classification of Sequences 37 2.2 Typical Sequences and Sequence Representation 41 2.2.1 Some Basic Sequences 41 2.2.2 Sequences Generation Using MATLAB 49 2.2.3 Representation of an Arbitrary Sequences 49 2.3 Discrete-Time Systems 50 2.3.1 Discrete-Time System Examples 50 2.3.2 Classification of Discrete-Time System 56 2.3.3 Impulse and Step Responses 59 2.4 Time-Domain Characterization of LTI Discrete-Time Systems 60 2.4.1 Input-Output Relationship 60 2.4.2 Stability Condition in Terms of the Impulse Response 65 2.4.3 Causality Condition in Terms of the Impulse Response 67 2.4.4 Linear Constant Cofficient Difference Equation 67 2.5 Classification of LTI Discrete-Time Systems 68 2.5.1 Classification Based on Impulse Response L 3.3 Discrete-Time Fourier Transform Theorems 95 3.4 DTFT Computation Using MATLAB 100 3.5 The Unwrapped Phase Function 101 3.6 The Frequency Response of an LTI Discrete-Time System 103 3.6.1 Definition 103 3.6.2 Frequency-Domain Characterization of the LTI Discrete-Ti…… |
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