CIC filter
in [DSP]
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From: Lovre on 10 Mar 2010 12:54 Hi all. How do i implement a CIC filter in C? I am using ARM to collect some data with ADC, and now i would like to filter it with CIC filter. I find data about cic, but its mostly theoretical, and i dont really know how to implement it in practice....
From: Steve Pope on 10 Mar 2010 13:51 Lovre <lovre.bosnjak(a)gmail.com> wrote: > How do i implement a CIC filter in C? I am using ARM to collect > some data with ADC, and now i would like to filter it with > CIC filter. I find data about cic, but its mostly theoretical, > and i dont really know how to implement it in practice.... It is straightforward to implement a CIC filter from the original papers. I am curious, why are you chosing this particular filter structure? Steve
From: Vladimir Vassilevsky on 10 Mar 2010 13:58 Lovre wrote: > Hi all. > > How do i implement a CIC filter in C? I am using ARM to collect some data > with ADC, and now i would like to filter it with CIC filter. > I find data about cic, but its mostly theoretical, and i dont really know > how to implement it in practice.... http://www.embedded.com/columns/technicalinsights/160400592?_requestid=186457 Vladimir Vassilevsky DSP and Mixed Signal Design Consultant http://www.abvolt.com
From: Lovre on 11 Mar 2010 07:02 >Lovre <lovre.bosnjak(a)gmail.com> wrote: > >> How do i implement a CIC filter in C? I am using ARM to collect >> some data with ADC, and now i would like to filter it with >> CIC filter. I find data about cic, but its mostly theoretical, >> and i dont really know how to implement it in practice.... > >It is straightforward to implement a CIC filter from the >original papers. > >I am curious, why are you chosing this particular filter structure? > >Steve > Well, im told it is the best way for noise shaping, and i have a narrow band which i need to filter out of a much wider, so the quantisation noise is killing my bits :o
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