How do I get the amplitude profile of an earthquake Signal?

1 次查看（过去 30 天）
Samar Kenkre
Samar Kenkre 2015-6-4
评论： Star Strider 2015-6-4
I have El-Centro data. Using wavelet analysis,I have reconstructed the signal, I need to get a smooth plot of the amplitude profile which envelopes the Accel vs Time graph. Any idea how I should go about it?
TIA

请先登录，再回答此问题。

回答（2 个）

Chad Greene
Chad Greene 2015-6-4
You can use one of the enveloping techniques discussed here.
Star Strider
Star Strider 2015-6-4
Another option is to use the Hilbert transform, as described in Envelope Extraction Using the Analytic Signal (Signal Processing Toolbox).
  2 个评论
Samar Kenkre
Samar Kenkre 2015-6-4
Would I have to take the absolute values of the hilbert transform?
Star Strider
Star Strider 2015-6-4
Yes, according to the documentation.
I’ve used it on some of my signals, and it works.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Hilbert and Walsh-Hadamard Transforms 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