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采用小波包变换去除脉搏波的基线漂移和公平干扰 效果较小波变换更好-Wavelet packet transform to remove baseline drift and pulse wave interference effect of smaller transform fair better
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对一个二阶模型模型进行脉冲响应辨识,并且通过搭建simulink模型取得了两组输入-输出数据,一组是在有高斯噪声的干扰下获得u1-y3,另外一组是在没有高斯噪声的情况下获得的u1-y1,对这两组数据进行基于haar小波基的脉冲响应辨识,与实际模型的脉冲响应相比较(注:三个excel表必须放在matlab/work文件夹下才能运行)-Second-order model to a model of impulse response identification, and achieved thro
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直扩系统中,非抽取小波包变换抑制窄带干扰。-narrowband interference suppression with the wavelet packet transform.
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基于小波变换的ECG信号去噪系统设计,在信号采集时,身体的任一微小运动都会产生“基线漂移”,这是一种低频干扰,同时,由于肌电的存在又产生了高频的肌电噪声,由于空间电磁场的存在又使心电信号中混有50Hz的工频干扰。这些噪声不去除,就会影响下一步的信号处理。
综合运用数字信号处理的理论知识进行生物医学信号增强系统设计,实现ECG信号的去噪,从而加深对小波变换及其应用的理解,建立概念多分辨分析的概念,加深理解信号增强的原理、方法和步骤。本设计的主要内容是设计一个基于小波变换的ECG信号去噪系统,
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小波变换去噪,此函数用于去除白躁信号&周期性干扰信号-Wavelet transform denoising, this function is used to remove white manic signal & periodic interference signal
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小波分析、局部放电试验所采集的信号中往往混有白噪声、周期干扰信号去除。此处采用常用db系列小波中的db6小波进行9尺度的多分辨分解后,根据白噪声能量特性,估算各尺度的阈值大小,采用硬值进行处理,后进行重构。-Wavelet Analysis、Signal acquired partial discharge test is often mixed with white noise, periodic interference signal removal. Db series wavelet c
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利用小波变换去除心电信号中的基线漂移干扰-Wavelet transform to remove the ECG baseline drift interference
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esprit算法对有干扰的信号频率进行估计,Gabor小波变换与PCA的人脸识别代码,一种流形学习算法(很好用)。- esprit algorithm signal frequency interference can be assessed Gabor wavelet transform and PCA face recognition code, A fluid manifold learning algorithm (good use).
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基于欧几里得距离的聚类分析,esprit算法对有干扰的信号频率进行估计,关于小波的matlab复合分析。- Clustering analysis based on Euclidean distance, esprit algorithm signal frequency interference can be assessed Matlab wavelet analysis on complex.
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采用了小波去噪的思想,模式识别中的bayes判别分析算法,esprit算法对有干扰的信号频率进行估计。- Using wavelet denoising thought, Pattern Recognition bayes discriminant analysis algorithm, esprit algorithm signal frequency interference can be assesse.
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采用了小波去噪的思想,插值与拟合的matlab实现,esprit算法对有干扰的信号频率进行估计。- Using wavelet denoising thought, Interpolation and fitting matlab implementation, esprit algorithm signal frequency interference can be assesse.
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esprit算法对有干扰的信号频率进行估计,ldpc码的编解码实现,关于小波的matlab复合分析。- esprit algorithm signal frequency interference can be assessed Codec ldpc code implementation Matlab wavelet analysis on complex.
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小波分析在心电信号去噪中的应,主要针对心电信号中的肌电干扰/基线漂移/工频干扰进行的算法研究-Wavelet analysis in the ECG signal denoising should be mainly for the ECG signal in the EMG/baseline drift/frequency interference algorithm for the study
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本程序先通过求导找出大部分R波 ,然后对应比较乱的波形通过,通过小波分解找出,去除较大干扰。(This procedure first through the derivation to find most of the R wave, and then corresponding to the chaotic waveform through, through wavelet decomposition to find out, remove larger interference.)
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运用小波包分解功能对含噪信号降噪,剔除干扰噪声,提高信号信噪比。(The function of wavelet packet decomposition is used to denoise the noisy signal, eliminate the interference noise and improve the signal-to-noise ratio.)
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