Prev: Comprression ratio for SPIHT algorithm
Next: Custom format floats in Simulink
From: kk KKsingh on 13 Mar 2010 02:06
Greg Heath <heath(a)alumni.brown.edu> wrote in message <e6377112-14e1-4364-85f0-5bb43c2da63c(a)q21g2000yqm.googlegroups.com>...
> On Mar 13, 1:29 am, "kk KKsingh" <akikumar1...(a)gmail.com> wrote:
> > Heygreg! Its not a signal reconstruction, its the same grid on which we are getting a signal
> ]
> Reconstruction means to construct again.
> Therefore, I have no idea what you mean.
> Please explain.
>
> and
>
> PLEASE DO NOT TOP.POST.
>
> It is very annoying to have to scroll down to make
> sense of what is said above.
>
> Greg

Sorry for top posting ! Let suppose i have a decimated image now I will reconstruct my image (original image) same applies for signal if i have some signal which has missing samples then i would prefer to get its approximate spectrum by taylor method or by yours dftgh and then try to construct the correct spectrum by weighted least squares and finally apply backward fourier kernal or ifft to get signal back in short I am regularizing the signal
From: Greg Heath on 13 Mar 2010 04:35
On Mar 13, 2:06 am, "kk KKsingh" <akikumar1...(a)gmail.com> wrote:
> Greg Heath <he...(a)alumni.brown.edu> wrote in message <e6377112-14e1-4364-85f0-5bb43c2da...(a)q21g2000yqm.googlegroups.com>...
> > On Mar 13, 1:29 am, "kk KKsingh" <akikumar1...(a)gmail.com> wrote:
> > > Heygreg! Its not a signal reconstruction, its the same grid on which we are getting a signal
> > ]
> >  Reconstruction means to construct again.
> > Therefore, I have no idea what you mean.
> > Please explain.
>
> > and
>
> > PLEASE DO NOT TOP.POST.
>
> > It is very annoying to have to scroll down to make
> > sense of what is said above.
>
> > Greg
>
> Sorry for top posting ! Let suppose i have a decimated image now I will reconstruct my image (original image) same applies for signal if i have some signal which has missing samples then i would prefer to get its approximate spectrum by taylor method or by yours dftgh and then try to construct the correct spectrum by weighted least squares and finally apply backward fourier kernal or ifft to get signal back in short I am regularizing the signal

You cannot use the ifft unless both both t and f are
uniformly spaced with length N and df*dt = 1/N.

Obtain the spectrum using LS. Try zeropadding
and using the IDFT to interpolate missing
original data.

Hope this helps.

Greg
First  |  Prev  | 
Pages: 1 2 3
Prev: Comprression ratio for SPIHT algorithm
Next: Custom format floats in Simulink