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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: 用于心电信号的处理，有软硬阈值滤波，FIR及IIR滤波，还有空域相关滤波！需要的可下载-the filter for ecg!
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Size: 2048 |
Author: jadepeak |
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Description: 关于心电信号的各种滤波方法，IIR，FIR，空域相关，软硬阈值，基于IIR的自适应滤波等-the method for ECG denoising,such as IIR,FIR,spatial correlation,soft and hard threshold,based on IIR filter s adaptive filter
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Size: 3072 |
Author: jadepeak |
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Description: iir filter32 at matlab and c++ we usd this filter at ECG application
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Size: 45056 |
Author: ivgeni |
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Description: 用双线性Z变换法设计IIR巴特沃思型数字低通滤波器，能够实现心电信号中随机噪声的去除。-Bilinear Z transform with the design of IIR Butterworth 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: 1. 用双线性变换法设计一个巴特沃斯低通IIR数字滤波器。设计指标参数为：在通带内频率低于0.2π时，最大衰减小于1dB；在阻带内[0.3π, π]频率区间上，最小衰减大于15dB.
2.0.02π为采样间隔，打印出数字滤波器在频率区间[0, π/2]上的频率响应特性曲线。
3. 用所设计的滤波器对实际心电图信号采样序列进行仿真滤波处理，观察总结滤波作用与效果
附：心电图采样序列x(n)
人体心电图信号在测量过程中往往受到工业高频干扰，所以必须经过低通滤波处理后，才能作为判断心脏功能的有用信息。下面给出一实际心电图信号采样序列样本x(n),其中存在高频干扰。在实验中以x(n)作为输入序列，滤除其中的干扰成分。
{x(n)}={-4,-2,0,-4,-6,-4,-2,-4,-6,-6,-4,-4,-6,-6,-2,6,12,8,0,-16,-38,-60,-84,-90,-66,-32,-4,-2,-4,8,12,12,10,6,6,6,4,0,0,0,0,0,-2,-4,0,0,0,-2,-2,0,0,-2,-2,-2,-2,0}
-1. With the bilinear transformation to design a Butterworth low-pass IIR digital filter. Design target parameters: the passband frequencies below 0.2π, the maximum attenuation is less than 1dB in the stopband [0.3π, π] frequency range, the minimum attenuation greater than 15dB.
2.0.02π for the sampling interval, print out the digital filter in the frequency interval [0, π/2] on the frequency response curve.
3. With the designed filter on the actual ECG signal sample sequence to simulate filtering, observation summed up the role and effect of filtering
Attachment: ECG sampling sequence x (n)
Human ECG signal in the measurement process is often subject to industrial high-frequency interference, it must be low-pass filtering before they can determine cardiac function as a useful information. Here are a sample of the actual ECG signal sampling sequence x (n), where there is high frequency noise. In the experiment with x (n) as the input sequence, in which the interference filter e
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Size: 3072 |
Author: zr |
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Description: MATLAB-based frequency interference notch filter design
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Size: 7168 |
Author: cherry |
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Description: 用双线性变换法设计一个IIR滤波器对心电信号进行处理-Bilinear transformation method of designing an IIR filter to process the ECG
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Size: 1024 |
Author: 王芳 |
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Description: 采用双线性变换法实现IIR滤波器 并且用用所设计的滤波器对实际心电图信号采样序列进行仿真滤波处理-IIR filters using the bilinear transformation method and the sampling sequence of the designed filter on the actual ECG signal simulation filtering
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Size: 34816 |
Author: yinchengjun |
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Description: 心电信号的预处理滤波器的设计（包括数据文件和程序） 包括了FIR滤波器和IIR滤波器以及整系数滤波器，可以有效滤除基线漂移与工频干扰-ECG preprocessing filter design (including data files and programs) including FIR filter and IIR filters, and the whole coefficient filter can effectively filter out baseline drift and frequency interference
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Size: 292864 |
Author: szy |
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Description: Abstract— with the latest advancements in electronics,
several techniques are used for removal of unwanted entities
from signals especially that are implied in the most
sophisticated applications. The removal of power line
interference from most sensitive medical monitoring
equipments can also be removed by implementing various
useful techniques. The power line interference (50/60 Hz) is
the main source of noise in most of bio-electric signals. The
report presents the removal of power line interference,
baseline wandering and additive white Gaussian noise
(AWGN) from ECG signal using the different types of
filtering technique. The project is based on digital signal
processing (DSP) techniques with MATLAB package, the
IIR Notch filter can be used for removal of power line
interference, Median can be used for Baseline wandering
noise and Discrete Wavelet Transform can be used for
removal of AWGN.
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Size: 654336 |
Author: muthupandy |
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Description: 采用巴特沃斯，凯塞窗设计FIR ，IIR滤波器，要求输入为心电信号，功能可以实现，效果较好-Using Butterworth, Kaiser window design FIR, IIR filters, for admission to ECG function can be achieved, better
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Size: 3072 |
Author: 汪洋 |
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Description: 心电信号数据 去噪滤波 IIR FIR 小波去噪等-ECG digital filter IIR,FIR
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Size: 182272 |
Author: fengfeng |
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Description: filtering of ECG signals using different types of filtering techniques (IIR, FIR, Adaptive filtering)
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Size: 3072 |
Author: frh |
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Description: 内含心电信号数据及运用MATLAB写的源代码，基于matlab GUI界面设计,FIR 底通和带通滤波器和IIR 底通和带通滤波器。- ECG data and includes source code written in MATLAB, Based on matlab GUI interface design, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter.
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Size: 4096 |
Author: 赵敏科 |
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Description: 简单的数字滤波器设计
1．用脉冲响应不变法设计巴特沃斯数字滤波器
2. 用双线性变换法设计切比雪夫数字滤波器
3. 用双线性变换法设计巴特沃斯数字滤波器，并将直接型结构转换成级联型结构
5.设计带阻滤波器
6．利用窗函数设计法设计FIR数字低通滤波器
7. 利用频率采样设计法设计FIR数字低通滤波器。
8. 创新训练拓展内容
（1）根据心电信号特点设计IIR或FIR滤波器滤除心电图信号噪声
（2）设计IIR滤波器或FIR滤波器对语音信号进行滤波。(Simple digital filter design
1. design of Butterworth digital filter by impulse response invariance
2. design of Chebyshev digital filter by bilinear transform
3. the Butterworth digital filter is designed by the bilinear transformation method, and the direct structure is converted into a cascade structure
5. design bandstop filter
6. design of FIR digital low pass filter by window function design
7. the FIR digital low pass filter is designed by using the frequency sampling design method.
8. the content of creative training and expansion
(1) design IIR or FIR filter to filter the noise of electrocardiogram signal according to the characteristics of ECG signal
(2) the IIR filter or FIR filter is designed to filter the speech signal.)
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Size: 1478656 |
Author: jl12
|
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Description: 利用低通、带阻FIR以及IIR技术对心电图上附加的白噪声、高斯噪声等进行滤波还原操作（内附心电图数值样品）。(We use low-pass, band stop FIR and IIR technology to filter and restore the additional white noise and Gauss noise on ECG.)
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Size: 197632 |
Author: 黄大仙啊啊啊 |
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