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Any help about FIR filter algorithm

Started by mariya ●August 15, 2005
Reply by Bhaskar Thiagarajan ●August 15, 20052005-08-15
"Rune Allnor" <allnor@tele.ntnu.no> wrote in message
news:1124139431.418779.300590@f14g2000cwb.googlegroups.com...

>
> mariya skrev:
> > thanx again, i will try to work out all these and see where it leads! By
> > the way what do u mean by "ofgf-line float algorithms"?
> >
> > >Divide and concer! // did u mean divide and convert??
>
> Nope, it was supposed to be "divide and conquer" (just hope
> it got write know... ;)


Sometimes these smelling pistakes can be a pine ;-)

Cheers
Bhaskar


> Thanks, Bhaskar, for correcting my blunders!
>
> Rune
>
Reply by Jerry Avins ●August 15, 20052005-08-15
Rune Allnor wrote:

   ...


> Divide and concer!


If that's about cells, it probably should be "divide and cancer."

Jerry
-- 
Engineering is the art of making what you want from things you can get.
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Reply by Jon Harris ●August 15, 20052005-08-15
"mariya" <angelique1@jippii.fi> wrote in message 
news:wOqdnY01yLwmSp3eRVn-gg@giganews.com...

>
>>Integer probably won't do. You almost certainly need to deal with
>>fractions. You will likely have to deal with fixed point, which requires
>
>>adjusting (shifting) the results of multiplications when using integer
>>multipliers. Maybe you can find a C++ fixed-point math class. That's one
>
>>more thing to understand, so for now it is probably simpler to work in
>>float if you can afford the time.
>>
>>Jerry
>
> *************************************************************
>
> Definitely it would be much easier to stick with the float type but my big
> concern is that this filtering involves a convolution with an ADC input of
> type unsigned int, i have tried in some ways to convert them and i get the
> truncation error... I am affraid i cannot use the c++ fixed-point class as
> i am not familier with this language!!
> thanx!


Why not just convert to ADC data to float?