how to downsample a 1D signal using DWPT
Afficher commentaires plus anciens
I have a signal sampled at 250kHz frequency from a bearing. Consedring a 1 sec signal I want to down sample the signal from 250000 samples to 1024 samples? When I apply inbuilt matlab function dwt i get two variable approximations(A) and details(D). so when get 125000 samples each as it down sampling by level 2. But which of A or D is considered to carry the information of the signal ? one is low pass filtered and another is high pass filtered.
how to down sample the signal?
Réponses (0)
Catégories
En savoir plus sur Discrete Fourier and Cosine Transforms dans Centre d'aide et File Exchange
le 18 Mai 2017
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
