Frecuency Bands with Wavelet Transform

[Eloradana]

Hello
I´d be thankful if someone could help me. 

I need to know the frecuency band, I have the best three in LabVIew in the example Wavelet-Entropy Selection.VI

You can fin it at LabView Examples after install Advanced Signal Processing

So I want to know the frecuency band that the coefficients of the three belong to. 
Regards 🙂 

[DCarreon]

Hello Eloradana,

What is your application or what are you working on? Why do you need to know the frequency band?

[Eloradana]

Hello DCarreon

Good Morning!

My aplication is about Chattering, I want to detect Chattering, so I have read that I need the coefficients and I have them (thanks to the Wavelet Entropy-Selection VI, it's an example of LabView), and I can get them by levels, the most common for it, 3rd level, then I read about the subbands of frecuency, at the level three you'll get 8 coefficients (with the wavelet packet transform) so if you see the signal in that levels you could see the clearly change in the signal. Also you'll need another parameters but if I could see that subbands I'll be thankful. 

I have read about low pass and high pass, but i don't know how to apply it or maybe I am in a wrong path.

Thank you so much...

[DCarreon]

Hello Eloradana,

I see. It is going to be difficult to determine how LabVIEW determines and displays the frecuency coefficients in the Wavelet Entropy example.

Regards.

[Eloradana]

Hii DCarreon

Don't worry I think I solved 😄 
I have the graph of a frecuency subband, by choosing it with path the name of block is WA WP Read Node VI and WA WP Write Node VI.
Now I have to do a bigger code (I mean copy paste xD hahah) to get the 8 subbands 😄 
Regards