求翻译：（19）式中的 Y依次对应各小波系数观察值（带噪信号小波系数） ，即对应矩阵 运用式（20）进行迭代，求解得到矩阵 X即为真实信号的小波系数估计值。是什么意思？

(19) y in turn corresponds to the observed values ​​of all of wavelet coefficients (with the noise signal wavelet coefficients), that corresponds to the matrix using equation (20) iteration to solve the matrix x is the true signal wavelet coefficient estimates.

(19) of the corresponding Y followed by the wavelet coefficient value (with Noise Reduction signal wavelet coefficient), the corresponding matrix (20) use iterative solver, the matrix is a real signal X wavelet coefficient estimates.

(19) in the formula Y corresponds various wavelets coefficient observation value in turn (belt chirp signal wavelet coefficient), namely the corresponding matrix carries on the iteration using type (20), the solution obtains the matrix X namely for the real signal wavelet coefficient estimated value

(19) y followed by the corresponding Wavelet coefficients in an observation (noisy signal Wavelet coefficients), which corresponds to application matrix (20) iteration, solving the resulting matrix x which is the real signal using Wavelet coefficient estimates.

正在翻译，请等待...