how to downsample a 1D signal using DWPT

1 view (last 30 days)
Raady
Raady on 18 May 2017
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?

Sign in to answer this question.

Answers (0)

Categories

Find more on Discrete Multiresolution Analysis in Help Center and File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!