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Anyone know how to interpret Matlab Wavelet info?

Started by clutchfft March 4, 2013
I am learning how to use the GUI Wavelet program in Matlab (newbie).

I am working out an example and notice the following graphs labeled :
S, A1, A2, A3, A4, A5 and D1, D2, D3, D4, and D5.

I am performing a level 5 decomposition.  I am sure S = original signal but
what does A1 to A5 and D1 to D5 mean?  I assume its 1 to 5 because its a
level 5 decomposition but I am not sure what A and D stand for.
On Monday, March 4, 2013 1:07:50 PM UTC-6, clutchfft wrote:
> I am learning how to use the GUI Wavelet program in Matlab (newbie). I am working out an example and notice the following graphs labeled : S, A1, A2, A3, A4, A5 and D1, D2, D3, D4, and D5. I am performing a level 5 decomposition. I am sure S = original signal but what does A1 to A5 and D1 to D5 mean? I assume its 1 to 5 because its a level 5 decomposition but I am not sure what A and D stand for.
Average and Detail? A1 - A5 the low-pass coefficients, D1 - D5 the high-pass coefficients?
On Monday, March 4, 2013 11:07:50 AM UTC-8, clutchfft wrote:
> I am learning how to use the GUI Wavelet program in Matlab (newbie). > ... > I am not sure what A and D stand for.
Try reading the Mathworks freely available (Google is your friend) Wavelet Toolbox User's Guide at least as far as page 1-23. Dale B. Dalrymple
>On Monday, March 4, 2013 11:07:50 AM UTC-8, clutchfft wrote: >> I am learning how to use the GUI Wavelet program in Matlab (newbie). >> ... >> I am not sure what A and D stand for. > >Try reading the Mathworks freely available (Google is your friend) Wavelet
Toolbox User's Guide at least as far as page 1-23.
> >Dale B. Dalrymple > >
Thanks, it provided a lot of helpful information.
On Mon, 04 Mar 2013 13:07:50 -0600, "clutchfft" <94601@dsprelated>
wrote:

>I am learning how to use the GUI Wavelet program in Matlab (newbie). > >I am working out an example and notice the following graphs labeled : >S, A1, A2, A3, A4, A5 and D1, D2, D3, D4, and D5. > >I am performing a level 5 decomposition. I am sure S = original signal but >what does A1 to A5 and D1 to D5 mean? I assume its 1 to 5 because its a >level 5 decomposition but I am not sure what A and D stand for.
Hi, you might ask my friend Lee Fugal for help. Lee's a wavelet guru who uses Matlab. He's at: lfugal@aol.com Good Luck, [-Rick-]