Encounter a difficult timing recovery problem

dbd wrote:

> On Jan 14, 4:13 pm, Vladimir Vassilevsky
> wrote:

>>What is the exact definition of the "Farrow structure" and what is
>>special about it compared to a generic polynomial interpolation?

> The Farrow structure is a Taylor series implementation of a polynomial
> interpolator. Harris has a paper discussing the derivation and
> implementation:
> 
> http://www.signumconcepts.com/IP_center/paper018.pdf
> 
> Try Figure 12.

Thank you very much. It would be interesting to know how it compares to 
the interpolation by Lagrange and/or splines.


Vladimir Vassilevsky
DSP and Mixed Signal Design Consultant
http://www.abvolt.com

On Jan 16, 6:00 am, julius <juli...@gmail.com> wrote:
> On Jan 16, 1:24 am, dbd <d...@ieee.org> wrote:
>
>
>
> > The Farrow structure is a Taylor series implementation of a polynomial
> > interpolator. Harris has a paper discussing the derivation and
> > implementation:
>
> >http://www.signumconcepts.com/IP_center/paper018.pdf
>
> > Try Figure 12.
>
> > Dale B. Dalrymplehttp://dbdimages.comhttp://stores.lulu.com/dbd
>
> I think fred harris had mistyped Farrow's name in reference [1].
> Now there's a real risk of the Farrow filter being known as the Barrow
> filter instead!  Yikes!
>
> Julius

Only in the last paragraph of the conclusions and the first reference,
the rest of the appearances of Farrow are correct. I suspect the
document went through a OCR process that misread only two of the F's
as B. The same site has a portion of fred's proceedings paper that
seems to show similar effects.

Dale B. Dalrymple