how to downsample a 1D signal using DWPT

1 次查看（过去 30 天）
Raady
Raady 2017-5-18
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?

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 Discrete Multiresolution 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!