Algorithm 1: The workflow of new method

Input:$y\left(t\right)$, $\delta$, $\epsilon$ Output:$y^{\prime }\left(t\right)$ Procedure:  Decompose $y\left(t\right)$ to $n$ modes by CEEMD the decomposed modes are denoted as $im{f}_i\left(t\right)\left(i=1,2,\dots \dots n\right)$ For $i=1:n$ Determine the correlation coefficient between $im{f}_i\left(t\right)$ and the original signal the correlation coefficient is denoted as ${\rho }_i$  If ${\rho }_i<\delta$   Discard $im{f}_i\left(t\right)$  Else   Determine the multi-scale arrangement entropy of $im{f}_i\left(t\right)$   the multi-scale arrangement entropy is denoted as $MPE\left(i\right)$   If $MPE\left(i\right)>\epsilon$()    Bilateral filtering is needed to denoise   Else    Remain original $im{f}_i\left(t\right)$ Reconstruct the denoised signal $y^{\prime }\left(t\right)$.