The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Software » comp.soft-sys.matlab

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Please correct the energy
Replies: 3   Last Post: Oct 28, 2010 5:55 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Dinesh Bhati

Posts: 24
Registered: 8/4/10
Re: Please correct the energy
Posted: Oct 27, 2010 1:04 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

"Dinesh Bhati" <> wrote in message <ia8cs1$n7e$>...
> Hi,
> Can any one correct the energy Emid. It should also be same as Ex and Ey and equal to one.Note for DB1 you will get the correct Emid.
> clear
> clc
> str='db2'
> x=randint(1,10,[1 10]);
> x=x/norm(x(:));
> Ex=sum(x.^2)
> [A,H]=dwt(x,str);
> Emid=sum(A.^2)+sum(H.^2)
> y=idwt(A,H,str);
> Ey=sum(y.^2)
> Dinesh

May I know what is the problem with the Emid. As per parsevals theorem it must be equal to one.

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.