Method and its application of on-line denosing of process data based on lifting scheme
WU Chong-guang · Jisuanji yingyong yanjiu · 2008
This paper used the wavelet transforms based on lifting scheme for the boundary problem in the classical wavelet transforms.Pesigned the predict algorithm and update algorithm near and far from the boundary,which made it possible for on-line denoising of process data with a sliding window.And used the denoising of gross error to enhance the robust.The numerical experiment and denoising of process data show that the method can work well near the boundary of data and achieve better denoising result.