How thresholding is done after the decomposition of a signal using discrete wavelet transform?
5 次查看(过去 30 天)
显示 更早的评论
I have a signal which is the combination of two signals, one of which is relevant to me. I have decomposed the signal into diffeternt details and approximation using discrete wavelet transform. In these two of the details have the part of the signal which is relevant. So I need to do hard thresholding on the part which I dont want. How can I do this? Is there any in-build function for the same?
0 个评论
回答(1 个)
Nadia Shaik
2022-11-25
Hi Bipin,
I understand that you want to perform thresholding after the decomposition of a signal using Discrete Wavelet Transform.
A wavelet and a level N have to be selected and then the wavelet decomposition of the input signal at level N is computed. For each level from 1 to N, select a threshold and then thresholding is applied to the detail coefficients.
I hope this resolves your query.
0 个评论
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Denoising and Compression 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!