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Thread Subject:
Question for People who work on Audio signal

Subject: Question for People who work on Audio signal

From: kk KKsingh

Date: 24 Aug, 2010 22:36:04

Message: 1 of 4

I have some signal its a SAR and GPR data which have high frequencies some data is clipped......I am thinking if some one can recommend me some thing to restore these clipping

Thanks

Subject: Question for People who work on Audio signal

From: Rune Allnor

Date: 25 Aug, 2010 03:14:45

Message: 2 of 4

On Aug 25, 12:36 am, "kk KKsingh" <akikumar1...@gmail.com> wrote:
> I have some signal its a SAR and GPR data which have high frequencies some data is clipped......I am thinking if some one can recommend me some thing to restore these clipping
>
> Thanks

Once the clipping has occured, the signal can not be recovered.

Rune

Subject: Question for People who work on Audio signal

From: Walter Roberson

Date: 25 Aug, 2010 04:51:11

Message: 3 of 4

On 24/08/10 10:14 PM, Rune Allnor wrote:
> On Aug 25, 12:36 am, "kk KKsingh"<akikumar1...@gmail.com> wrote:
>> I have some signal its a SAR and GPR data which have high frequencies some data is clipped......I am thinking if some one can recommend me some thing to restore these clipping

> Once the clipping has occured, the signal can not be recovered.

If the signal is a wave form that obeys known rules, and if it is
distorted in transmission (e.g., pulse edges rounded perhaps because of
voltage slew rate limitations), and if the received signal is sampled
finely enough, then the original signal can sometimes be regenerated.

For example if the corners of a square wave are not perfectly
perpendicular, then there is a bandwidth limitation involved (at some
level), but if it is known to be a square wave and if the target level
is held to within a tolerance for long enough, then the height of the
pulse can be deduced and by using (e.g.) half-height, the original
boundaries of the pulse can be deduced, allowing the pulse to be
regenerated. then the original poster would have trouble.

Of course if the sampling rate is below the Nyquist frequency of the
information required to do the reconstruction, then

Subject: Question for People who work on Audio signal

From: kk KKsingh

Date: 26 Aug, 2010 03:59:05

Message: 4 of 4

Rune Allnor <allnor@tele.ntnu.no> wrote in message <fc089cce-eb80-4199-a36c-cc733952dc8b@q22g2000yqm.googlegroups.com>...
> On Aug 25, 12:36 am, "kk KKsingh" <akikumar1...@gmail.com> wrote:
> > I have some signal its a SAR and GPR data which have high frequencies some data is clipped......I am thinking if some one can recommend me some thing to restore these clipping
> >
> > Thanks
>
> Once the clipping has occured, the signal can not be recovered.
>
> Rune

we Can
https://docs.google.com/fileview?id=0B9lyGDKrglBfYTFkYzY1YmItZjBlMC00MDE4LWI0YTUtMzI4YWUwOWViZTQx&hl=en&authkey=CMDA95cM

I am trying to write code based on this ! will post some thing soon !

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