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

利用FIR滤波原理，设计了一个带通型的FIR滤波器，用于实现语音去噪。-According to the principles of FIR filtering,a type of bandpass FIR filter has been designed to achieve the goal of speech enhancement

设计一个一维滤波处理程序（1.分别做低通、高通、带通、带阻等理想滤波器进行处理；2.窗函数）-Design a one-dimensional filter processing program (1 respectively do low pass, high pass, band pass, band stop filter such as the ideal treatment 2 window function)