It is nearly impossible to design a linear￾phase IIR transfer function It is always possible to design an FIR transfer function with an exact linear-phase response Consider a causal FIR transfer function H(z) of length N+1, i.e., of order N:

§7.2 Selection of Filter Type §7.3 Digital Filter Design: Basic Approaches §7.4 IIR Digital Filter Design: Bilinear Transformation Method §7.5 Low pass FIR filter design §7.6 Fixed Window Functions §7.7 Design Steps for Windowed Low Pass FIR Filters

1. 掌握基2时间抽取和基2频率抽取FFT算法的基本思想和方法 。 2. 了解基4时间抽取FFT算法的基本原理 。 3. 掌握实序列FFT计算，以及由N点序列FFT计算2N点序列FFT的方法 。 4. 掌握利用FFT计算IDFT的过程以及IFFT实现的原理 。  6.0 引言  6.1 基2时间抽取法  6.2 基2频率抽取法  6.3 IFFT  6.4 实序列FFT的高效算法  6.5 *基4和混合基 FFT算法(扩展部分)  6.6 *线性调频Z变换算法

§5.1 Digital Processing of Continuous-Time Signals §5.2 Sampling of Continuous-time Signals §5.3 Effect of Sampling in the Frequency Domain §5.4 Recovery of the Analog Signal §5.6 Sampling of Bandpass Signals §5.7 Analog Lowpass Filter Specifications §5.8 Analog Lowpass Filter Design

一、理解句柄图形的基本概念 二、掌握句柄图形属性设置的方法 三、熟悉GUI工具的基本内容 四、掌握菜单设计的方法 五、掌握控件设计的方法 六、掌握对话框设计的方法

§3.1 Discrete-Time Fourier Transform §3.2 DTFT Properties §3.3 Discrete Fourier Transform (DFT) §3.5 Circular Shift of a Sequence §3.6 Circular Convolution §3.7 z-transform §3.8 z-Transform Properties §3.9 Discrete Fourier Transform Computation

一、理解窗函数的基本概念以及加窗原理 二、掌握基本窗函数产生的方法 三、掌握广义余弦窗函数产生的各种方法 四、了解凯塞窗函数和切比雪夫窗函数产生的方法

The simple filters discussed so far are characterized either by a single passband and/or a single stopband There are applications where filters with multiple passbands and stopbands are required The comb filter is an example of such filters

一、了解MATLAB语言的背景知识 二、掌握MATLAB安装的方法过程 三、掌握MATLAB基本窗口的使用 四、掌握MATLAB语言的基础知识

Later in the course we shall review various methods of designing frequency-selective filters satisfying prescribed specifications We now describe several low-order FIR and IIR digital filters with reasonable selective frequency responses that often are satisfactory in a number of applications