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本实验首先按照给定技术指标采用模拟低通滤波器（巴特沃思低通滤波器）去逼近理想模拟低通滤波器，然后通过双线性变换法对模拟滤波器进行数字化，得到数字滤波器。-In this study, first of all technical specifications in accordance with a given analog low-pass filter (Butterworth low-pass filter) to approximate the ideal analog low-pass
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巴特沃斯數字低通濾波器。採樣率8000HZ，fp=2100hz,fs=2500hz,Rp=3db,Rs=25db.-butterworth LPF
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这个是对一个一维信号的Excel数据加载进matlab程序，然后进行巴特沃斯的低通滤波。-This is a one-dimensional signal of Excel data is loaded into the matlab program, and then Butterworth low-pass filtering.
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设计巴特沃斯低通和高通IIR数字滤波器，得到二阶频率级联参数-Design of Butterworth low-pass and high-pass IIR digital filters, to be cascaded second-order frequency parameter
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butter worth, for digital singal processing
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Butterworth filter and Chebyshev filter of the MATLAB simulation
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butterworth filter design on MATLAB
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时间序列的时频特性分析研究时间序列的傅里叶变换及逆变换，快速梅林变换及逆变换，短时离散傅里叶变换，得到瞬时频率。
研究时间序列的Born–Jondan时频分布图，Butterworth时频分布图，Choi–Williams时频分布图，得到瞬时频率。
-Time series analysis of time-frequency characteristics of time series of Fourier transform and inverse transform, the fa
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做傅立葉轉換並SHIFT
2階巴特沃斯
做週期性雜訊的處理-Fourier transform and SHIFT 2 do Butterworth deal to do periodic noise
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理想低通、高通、巴特沃斯低通高通滤波器对图像进行锐化和模糊处理-Ideal low-pass, high pass, Butterworth low pass high pass filter sharpening and blurring the image processing
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程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
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绘制四种常用低通模拟滤波器（贝赛尔滤波器，巴特沃斯滤波器，切比雪夫滤波器及椭圆滤波器）幅频特性曲线-Draw four commonly used low-pass analog filter (Bessel filter, Butterworth filter, Chebyshev filter and elliptic filter) amplitude-frequency characteristic curve
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模拟巴特沃斯滤波器，并可观察期幅频相频特性曲线-Analog Butterworth filter, and can observe the phase frequency of amplitude-frequency characteristic curve
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数字信号处理的问题，用MATLAB编写的，用巴特沃斯、切比雪夫等设计IIR数字滤波器的程序。-Digital signal processing issues, written with MATLAB, with Butterworth, Chebyshev design of IIR digital filters and other procedures.
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几种滤波器：hamming窗口的低通滤波器，给定技术指标的模拟巴特沃兹低通滤波器，kaiser窗口的带阻滤波器，blackman窗口的带通滤波器，Kaiser 窗低通滤波器-Several filters: hamming window low-pass filter, given specifications of the analog Butterworth low-pass filter, kaiser window band stop filter, blackman window ba
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用理想，巴特沃斯，高通滤波器锐化图像 用matlab编程实现-With the ideal Butterworth high pass filter sharpening the image using matlab programming
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The File Contains 5 Other Source Codes include, bandpass Butterworth Filter, Gabor Bank, RGB to HLS Conversion, Image Filtering in Frequency Domain and Hough transform.
I hope that s enough to make me a member.
Regards.
Zizi.
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matlab code for butterworth
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这事我用巴特沃斯模拟的方法设计的数字低通，高通，带通滤波器，其中只有一小段-I used this method to design analog Butterworth digital low pass, high pass, band pass filter, which only a short
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butterworth滤波器的matlab设计，通带截止频率0.3pi，阻带截止频率0.2pi-matlab butterworth filter design, the passband cutoff frequency 0.3pi, stopband cutoff frequency 0.2pi
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