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

对采集的语音信号进行滤波，谱分析，并进行前后时域和频域波形比较。可选择IIR和FIR滤波器进行高通，低通和带通滤波。-To obtain the voice signal filtering, spectrum analysis, and the time domain and frequency domain waveform and compared. Can choose IIR and FIR filter for qualcomm, low pass and bandpass filt

用matlab实现巴特沃斯带通滤波器的M文件。本例读取电脑自带的XP开机声音，加上噪声，然后滤波看效果。-Using matlab to achieve the M-file Butterworth bandpass filter. This case, read the computer comes with XP start-up sound, plus noise, and then filter to see the effect.

This Matlab program filters the baseline drift in ECG signals using different techniques: - median filtering - moving average filtering - first order Kalman Smoother Filter - first order zero-phase Lowpass filter - Bandpass filter using

一个MATLAB例程，模拟高斯白噪声通过带通滤波器，生成一个窄带随机过程。(In a MATLAB routine, the Gauss white noise is simulated by a bandpass filter to generate a narrow band random process.)