Difference between multi-level and multi-scale decomposition in discrete wavelet transform

2 次查看（过去 30 天）
BHARADWAJ DIVATE
BHARADWAJ DIVATE 2020-4-24
评论： Ewunate Assaye Kassaw 2020-6-18
I am working on a example to learn about wavelets and their applications for 1-D signals. For a simple project to denoise an ECG signal, one of the papers proposed a method which said to perform multi-level and multi-scale decomposition of the noisy ECG signal. I learned that detcoef function is used to obtain the detail co-efficients of the layers wavedec function performs multi-level wavelet analysis. Is this same as multi-scale decomposition? If no,what does it actually mean?
PS - I do know that now there exists a wavelet denoiser in matlab which does all of this work automatically but I want to do this manually to learn more about this.

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Signal Analysis 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by