求翻译：利用Coif4小波对含有噪声的心电信号进行8层分解，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？

Use Coif4 wavelet noisy ECG signal 8-layer decomposition, and then use wavelet decomposition and reconstruction method to remove baseline drift, with improved threshold algorithm to remove the EMG interference and frequency interference, and the MIT-BIH arrhythmia database of ECG simulation.

Use 4 Small wave Coif to contain noise of telecommunications, with a heart-breaking down, and then use 8 Small wave decomposition re-structure the baseline drift, used to remove the threshold algorithm improvements in addition to radio interference and convention on Trade and Industry, and the frequ

To includes the noise heart electrical signal using the Coif4 wavelet to carry on 8 decompositions, then with the wavelet decomposition restructuring law elimination baseline drifting, removes the myo- electrical noise and the power frequency disturbance with the improvement threshold value algorith

Using Coif4 Wavelet to 8 contain noise of ECG signal decomposition and Wavelet Decomposition and reconstruction method for removing baseline wander, improving threshold algorithm to remove interference and power-line interference EMG and MIT-BIH arrhythmia ECG simulation in the database.

Decompose 8 floors to the electric signal of heart with noise with Coif4 small wave, then decompose and reconstruct the law to remove the base-line and drift about with the small wave, remove the electricity of skin and interfere with interfering with with the worker frequently with the threshold va