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Description: 设计一FIR低通滤波器
0=<|w|<=0.25Pi,输入n代表FIR滤波器的长度,输出H(ejw)幅度值,N代表输出数,Hbs[N]存放H(ejw)的幅度值,h[n]存放H[z]的系数,算法采用Hamming窗函数
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Author: 陈扬坤 |
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Description: 用窗函数设计法设计fir滤波器（矩形窗、汉宁窗、汉明窗、布拉克曼窗、凯泽窗）-Using window function design method the design of fir filter (rectangular window, Hanning window, Hamming window, Blackman window, kaiser window)
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Size: 3072 |
Author: 李文嘉 |
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Description: 用窗函数设计法设计fir滤波器（矩形窗、汉宁窗、汉明窗、布拉克曼窗、凯泽窗）-Using window function design method the design of fir filter (rectangular window, Hanning window, Hamming window, Blackman window, kaiser window)
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Author: 李文嘉 |
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Description: 实现一个40阶的fir低通滤波器，通带截止频率0.35，阻带截止频率0.4.采用Hamming窗获得滤波器系数。-The realization of the fir a 40-order low-pass filter, passband cutoff frequencies of 0.35, stopband cutoff frequency 0.4. Using Hamming window to obtain filter coefficients.
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Size: 1024 |
Author: liaocongyan |
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Description: 用MATLAB实现FIR滤波器，矩形窗，汉明窗-Using MATLAB realization of FIR filters, rectangular windows Hamming window
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Size: 2048 |
Author: stormy |
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Description: 用matlab来实现fir滤波器，包括矩形窗、汉宁窗、汉明窗、等波纹法！-Using matlab to achieve the fir filter, including the rectangular window, Hanning window, Hamming window, such as corrugated Act!
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Size: 219136 |
Author: 王娟芳 |
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Description: 设计一FIR低通滤波器
0=<|w|<=0.25Pi,输入n代表FIR滤波器的长度,输出H(ejw)幅度值,N代表输出数,Hbs[N]存放H(ejw)的幅度值,h[n]存放H[z]的系数,算法采用Hamming窗函数 -Design of FIR low-pass filter 1 0 =
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Size: 1024 |
Author: 陈扬坤 |
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Description: FIR汉明窗滤波器和IIR双线性变换法设计的低通滤波器，用于心电信号的滤波。-Hamming window FIR and IIR filter design bilinear transform low-pass filter for filtering ECG.
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Size: 2048 |
Author: kate |
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Description: 本次课程设计是用麦克风采集一段语音信号并对该语音信号进行滤波去噪处理。课程设计平台为MATLAB7.1。设计步骤为：首先采集一段语音信号并观察其频谱，然后设计一个汉明窗FIR滤波器，最后对该信号进行滤波。信号在进行滤波处理后，能够听到滤波后的语音信号和滤波前相比明显的变得清晰，基本达到了设计目的。-The curriculum design is a section of a microphone speech signal acquisition and filtering of the speech signal de-noising processing. Curriculum design platform MATLAB7.1. Design steps: First, a section of speech signal acquisition and to observe its spectrum, and then the design of a Hamming window FIR filter, the final filtering of the signal. Signal during the filtering processing, to hear the voice signal after filtering and filtering obvious ago became clear, the basic design to achieve the purpose.
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Author: 球球 |
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Description: The Window Design Method
The basic idea behind the design of linear-phase FIR filters using the window
method is to choose a proper ideal frequency-selective filter [which always has
a noncausal, infinite duration impulse response] and then truncate its impulse
response hd[n] to obtain a linear-phase and causal FIR filter h[n]. To truncate the
impulse response of the ideal filter a time window w[n] is used. Available windows
in Matlab are rectangular [or boxcar in Matlab], bartlett, hamming, hanning
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Size: 877568 |
Author: Rizwan |
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Description: 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
rectangular window frequency response ex5_5
Hilbert ex5_6 converter design- Hanning window
low-pass filter design ex5_7- Hamming window
ex5_8 bandpass filter design- Blackman window
ex5_9 low-pass filter design- Kaiser window
ex5_11 sampling frequency: low-pass, a simple method
ex5_12 sampling frequency: low-pass, optimal method T1 & T2
sampling frequency ex5_13: band-pass, optimal method T1 & T2
ex5_14 sampling frequency: high-pass, optimal method T1
sampling frequency ex5_15: differentiator
sampling frequency ex5_16: Hilbert converter
Parks-McClella use ex5_17 algorithm design low-pass filter
PM algorithm ex5_18 with the band-pass filter design
PM algorithm ex5_19 with the high-pass filter design
PM algorithm used ex5_20 ladder filter design
PM algorithm used ex5_21 differential design
PM al
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Author: 张满超 |
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Description: 四种窗函数设计FIR数字滤波器matlab源码（hant,hamming,blackman,kaiser)-use window functions to design digital low-pass FIR filter...
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Size: 2048 |
Author: Jie Yao |
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Description: 用窗函数法设计一个长度N等于8的线性相位FIR滤波器。其理想的幅频特性为
分别用矩形窗、Hanning窗、Hamming窗、Blackman窗、Kaiser窗(ｂ=8.5)设计该滤波器。
-Window function method used to design a length N equal to 8 the linear phase FIR filter. Its ideal amplitude-frequency characteristics of rectangular windows, respectively, Hanning window, Hamming window, Blackman window, Kaiser window (b = 8.5) the design of the filter.
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Size: 79872 |
Author: zhangfei |
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Description: 用各种窗函数设计FIR数字滤波器。
分别用矩形窗和Hamming窗设计线性相位FIR低通滤波器。要求通带截止频率，单位脉冲响应h(n)的长度N=21，绘出h(n)及其幅频响应特性曲线。
-Window function with a variety of FIR digital filter design. Were rectangular window and Hamming window design of linear phase FIR low-pass filter. Requirements of passband cutoff frequency, unit impulse response h (n) of length N = 21, draw h (n) and its amplitude-frequency response curve.
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Size: 3072 |
Author: 刘卫菠 |
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Description: 用窗函数法hamming设计的FIR数字低通滤波器，能够实现心电信号中随机噪声的去除-Hamming window function method with the design of FIR digital low-pass filter, ECG can be achieved in the removal of random noise
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Size: 1024 |
Author: li ting |
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Description: fir滤波器设计 输入设计指标 计算过渡带宽度 按哈明窗数据，计算滤波器长度-fir filter design input design index to calculate the transition zone width by Hamming window of data to calculate the length of filter
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Size: 1024 |
Author: 刘重阳 |
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Description: 使用hamming窗函数法设计的FIR带通滤波器-Use hamming window function method design FIR filters
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Size: 96256 |
Author: 刘煜 |
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Description: 采用Hamming窗实现的低通滤波器，可设置通带频率、截止频率以及带宽等滤波器特性参数。-The low-pass filter is realized by using Hamming window, can set the passband filter characteristic parameters such as frequency, the cut-off frequency and bandwidth.
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Size: 3072 |
Author: 陈阳春 |
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Description: 1、验证窗函数 N 变化时，验证其频谱主瓣副瓣比、主瓣宽度的变化。
a)矩形窗函数的 N 变化时，验证其其频谱主瓣副瓣幅度比基本不会发生变化，
而主瓣宽度将会变窄。这说明，当用矩形窗函数设计滤波器时，增大 N 不能使
得阻带衰减减小，但能够减小过渡带。
b)再选取其他的窗如 hamming/hanning 窗，验证当 N 变化时，其频谱主瓣宽
度变化、主瓣副瓣比值变化情况。
2、用窗函数法设计线性相位 FIR 低通，通带截止频率 wp=0.5PI, 阻带截止频率 ws=0.6PI,
阻带衰减不小于 40dB,通带衰减不大于 3dB.
a)选取 Hanning,Hamming 窗查看设计出来的 FIR 的过渡带宽和阻带衰减是否
满足要求，二者有什么不同。
b)使用 hamming 窗，将窗长增大 1 倍，设计 FIR。验证同样的窗函数类型
(hamming)，不同窗长度时，设计出来的 FIR 的过渡带宽和阻带衰减都有什么变
化。
3、不使用 Matlab 系统函数得到上一项指标的低通，并与上一项结果比较。
4 用窗函数法设计线性相位 FIR 高通，通带截止频率 wp=0.8PI, 阻带截止频率
ws=0.7PI, 阻带衰减不小于 30dB,通带衰减不大于 3dB.(An actual filter is implemented using the truncated unit impulse response sequence of the ideal filter.
For the ideal low pass filter, the unit impulse response h, N, D () is intercepted by a length of N, and the length is
The N sequence H (n), when intercepted, guarantees causality and linear phase requirements for the filter.
In order to reduce the Gibbs effect, the H (n) window is added, and the appropriate window function is selected to ensure the stopband attenuation and
Transition zone requirement. Note that the sidelobe of the window function affects the stopband attenuation of the filter, and the main lobe width affects the filter
Transition bandwidth.)
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Size: 3072 |
Author: 花祭嘉音
|
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Description: 这是关于离散数字信号处理的FIR变换窗程序（凯塞窗 汉明窗）(This is about discrete digital signal processing Fir Transform window program (Kaiser Window Hamming window))
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Size: 1024 |
Author: 似懂非懂多少分 |
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