说明：  ex5_1 I-型线性相位FIR滤波器 ex5_2 II-型线性相位FIR滤波器 ex5_3 III-型线性相位FIR滤波器 ex5_4 IV-型线性相位FIR滤波器 ex5_5 矩形窗频响 ex5_6 希尔伯特变换器设计－汉宁窗 ex5_7 低通滤波器设计－汉明窗 ex5_8 带通滤波器设计－布莱克曼窗 ex5_9 低通滤波器设计－凯塞窗 ex5_11 频率采样技术：低通，朴素法 ex5_12 频率采样技术：低通, 最优法T1 & T2 ex5_13 频率采样技术：带通, 最优法T1 & T2 ex5_14 频率采样技术：高通, 最优法T1 ex5_15 频率采样技术：差分器 ex5_16 频率采样技术： 希尔伯特变换器 ex5_17 利用Parks-McClella算法设计低通滤波器 ex5_18 用PM算法进行的带通滤波器设计 ex5_19 用PM算法进行的高通滤波器设计 ex5_20 用PM算法进行的阶梯滤波器设计 ex5_21 用PM算法进行的差分器设计 ex5_22 用PM算法进行的希尔伯特变换器设计
(ex5_1 I-type linear phase FIR filter ex5_2 II-type linear phase FIR filter ex5_3 III-type linear phase FIR filter ex5_4 IV-type linear phase FIR filter frequency response ex5_6 ex5_5 rectangular window Hilbert transformer design- Hanning window ex5_7 low-pass filter design- Hamming window ex5_8 bandpass filter design- Blackman window ex5_9 low-pass filter design- Kaiser window ex5_11 frequency sampling techniques: low pass, simple method ex5_12 frequency sampling technique: a low-pass optimal method T1 & T2 ex5_13 frequency sampling techniques: bandpass optimal method T1 & T2 ex5_14 frequency sampling techniques: high-pass, optimal method T1 ex5_15 frequency sampling techniques: differential control ex5_16 frequency sampling techniques: Hilbert converter ex5_17 use Parks-McClella algorithm design with a low-pass filter ex5_18 PM algorithm bandpass filter design algorithm with PM ex5_19 be high-pass filter design algorithm ex5_20 conducted by PM differentiator ex5_21 ladder filt)