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Description: 用矩形窗、三角窗，汉宁窗，海宁窗等多种窗口设计有限长单位脉冲响应滤波器-with rectangular windows, triangular windows, Hanning window, multiple windows Haining window design finite impulse response filter units
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Author: 孙涛 |
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Description: 数字带通滤波器的设计过程。共3个源程序。其中，dos.cpp为带通FIR的源程序，其中的滤波器阶数n，滤波器的低频fln，滤波器的高频fhn，窗函数w，可以按照自己的要求改变。这里采用的是汉宁窗。主函数main.cpp实现输入与fir的h(n)的卷积，输出结果Y(n)，并将其存储在y.txt中。最后，graphics.cpp从y.txt读取数据，再由语句画出波形，可以清楚地看出计算结果是否正确，并进行比较。-digital band-pass filter design process. A total of three sources. Among them, dos.cpp FIR bandpass to the source, the filter order n, the low-frequency filter FLN, the high-frequency filter fhn, window function w, in accordance with the requirements change. Here is the Hanning window. The main function main.cpp achieve the input and fir h (n) convolution, the output Y (n), and store them in y.txt China. Finally, graphics.cpp y.txt read data from and then draw waveform statement, we can clearly see whether calculations are correct, and comparisons.
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Author: feide |
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Description: 数字带通滤波器的设计过程。共3个源程序。其中，dos.cpp为带通FIR的源程序，其中的滤波器阶数n，滤波器的低频fln，滤波器的高频fhn，窗函数w，可以按照自己的要求改变。这里采用的是汉宁窗。主函数main.cpp实现输入与fir的h(n)的卷积，输出结果Y(n)，并将其存储在y.txt中。最后，graphics.cpp从y.txt读取数据，再由语句画出波形，可以清楚地看出计算结果是否正确，并进行比较。-digital band-pass filter design process. A total of three sources. Among them, dos.cpp FIR bandpass to the source, the filter order n, the low-frequency filter FLN, the high-frequency filter fhn, window function w, in accordance with the requirements change. Here is the Hanning window. The main function main.cpp achieve the input and fir h (n) convolution, the output Y (n), and store them in y.txt China. Finally, graphics.cpp y.txt read data from and then draw waveform statement, we can clearly see whether calculations are correct, and comparisons.
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Author: feide |
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Description: 用矩形窗、三角窗，汉宁窗，海宁窗等多种窗口设计有限长单位脉冲响应滤波器-with rectangular windows, triangular windows, Hanning window, multiple windows Haining window design finite impulse response filter units
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Size: 6144 |
Author: 孙涛 |
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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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Size: 12933120 |
Author: 李文嘉 |
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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: 基于汉宁窗的fir带通滤波器
用matlab仿真-Hanning window on the fir bandpass filter simulation using matlab
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Author: star |
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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: 此程序是基于MATLAB的采用窗函数设计法设计FIR滤波器，内有多种窗函数，包括海明窗，汉宁窗，布拉克曼窗-This procedure is based on the use of MATLAB window function design FIR filter design with a multi-window function, including the Hamming window, Hanning window, Blackman window, etc.
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Size: 1024 |
Author: 江晓磊 |
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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: 用汉宁窗设计一个FIR高通数字滤波器，满足以下参数要求：通带边界频率ωp=0.7π，通带内衰减函数αp=0.4dB；阻带边界频率Ωs=0.4π，阻带内衰减函数为αs=55dB。-With the Hanning window design an FIR high-pass digital filter to meet the requirements the following parameters: passband edge frequency ωp = 0.7π, pass-band attenuation function αp = 0.4dB stop-band edge frequency Ωs = 0.4π, stop-band attenuation within the function αs = 55dB.
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Size: 125952 |
Author: xbwu1 |
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Description: 此例子为fir滤波器设计c语言算法实现，包括三角窗，矩形窗，汉宁窗，汉明窗，凯萨窗等经典窗函数。可以直接调用。-This example for the fir filter design algorithm c language, including the triangular window, rectangular window, Hanning window, Hamming window, Caesar windows classic window function. Can be directly invoked.
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Size: 214016 |
Author: 高奕涵 |
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Description: FIR滤波器中汉宁窗和布莱克曼窗幅频特性曲线和相频特性曲线对比-FIR filter Hanning window and Blackman window of amplitude-frequency curve and phase frequency response curve compared
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Size: 105472 |
Author: huluhuluwo |
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Description: 用汉宁窗进行FIR处理实例，并给出幅频响应特性图形-Hanning Window with examples of FIR processing, and gives the amplitude frequency response graph
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Size: 1024 |
Author: 孟涛 |
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Description: DSP2812实现fir滤波，hanning窗-The DSP2812 to achieve fir filter, hanning window
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Size: 1024 |
Author: ji |
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Description:
基于MATLAB的仿真环境下的各种实现低通滤波器的方案！我们可以在这个基础上好好的进行研究！-Design FIR filter with firls and remez
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Size: 1024 |
Author: 刘耀峰 |
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Description: 对语音信号进行滤波，得到清晰度提高的信号。通带频率600Hz；截止频率Fc为1200Hz；通带衰减为1dB，阻带衰减为30dB。使用的窗函数类型为Hanning 窗。-design of fir filter,get the original voice without noise
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Author: 管春萌 |
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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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Author: 花祭嘉音
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