求翻译：为此，去噪时我们选取coif4小波进行仿真，所用仿真信号来自MIT-BIH心率失常数据库[5]，其采样频率为360Hz，选用信号均来自MLⅡ导联，使用Matlab7.0.1仿真工具。是什么意思？

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To this end, we have chosen to go to noise when coif 4 Small wave simulation is used in simulation signal from MIT - BIH arrhythmia database [ 5] and the sampling frequency signals came from 360, to choose Hz MLII import, use the 7.0 Matlab1 simulation tool.

Therefore, when denoising we select the coif4 wavelet to carry on the simulation, uses the simulation signal to come from MIT-BIH heart rate abnormal database (5), its sampling frequency is 360Hz, selects the signal to come from MLⅡLeads the association, uses the Matlab7.0.1 simulation tool.

To do this, select the coif4 Wavelet denoising, we simulate, using simulated signal from MIT-BIH arrhythmia database [5], the sampling frequency is 360Hz, selected signal comes from ML ⅱ-lead, using Matlab7.0.1 simulation tool.

For this reason, go we choose coif4 little wave carry on emulation make an uproar, use artificial signal come from MIT-BIH heart rate not normal database [5 ], its sampling frequency is 360Hz, select signals for use and come from MLⅡ and lead and unite, uses Matlab7.0.1 artificial tool.