求翻译：小波变换是一种对信号的时频分析方法，它具有多分辨分析的特点，通过对含有噪声信号的心电信号利用Coif4小波进行8层小波分解，然后用小波分解重构法去除基线漂移，用改进的阈值算法去除肌电干扰和工频干扰，并对MIT-BIH心率失常数据库中的心电信号进行仿真。是什么意思？

Wavelet transform is a time-frequency signal analysis methods, it has the characteristics of multi-resolution analysis, through the noisy ECG signal using wavelet Coif4 8-layer wavelet decomposition, and then use the wavelet decomposition and reconstruction method to remove the baseline drift using

wavelet transform is a kind of time to the signal frequency analysis methods, and it has a multi-resolution analysis features, through the heart to contain noise signals using Coif Telecommunications of Small wave 4 to 8 layers wavelet decomposition, and then use the little wave decomposition re-str

The wavelet transformation is one kind to the signal time frequency analysis method, it has the multi-resolution analysis characteristic, through to includes the noise signal heart electrical signal to carry on 8 wavelets using the Coif4 wavelet to decompose, then with the wavelet decomposition rest

Is a kind of signal Wavelet transform time-frequency analysis method, it has the characteristics of multi-resolution analysis, through the noise of ECG signal 8 using Coif4 Wavelet Wavelet Decomposition and Wavelet Decomposition and reconstruction method for removing baseline wander, improving thres

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