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application of cic filter

Started by hertfordshire July 4, 2007
Hey guys
I have to design cic interpolation filter using system generator.I am
trying to find any single application like in wireless area or in audio
signal.So can anyone please suggest me?


On Jul 4, 8:12 am, "hertfordshire" <keyur_29102...@yahoo.com> wrote:
> Hey guys > I have to design cic interpolation filter using system generator.I am > trying to find any single application like in wireless area or in audio > signal.So can anyone please suggest me?
You can use it as a filter. Maybe, if you are doing a sampling rate increase, you need filter the upsampled signals for removing the images. However, note that the filter frequency response is not flat and may affect the pass band of the signal. You can read a nice article on CIC by Richard Lyons @ http://www.us.design-reuse.com/articles/article10028.html Also, I have tried to provide some small pieces of matlab code for cic filter at http://dsplog.blogspot.com/2007/07/example-of-cascaded-integrator-comb.html Hope this helps. Regards, Krishna http://dsplog.blogspot.com
>On Jul 4, 8:12 am, "hertfordshire" <keyur_29102...@yahoo.com> wrote: >> Hey guys >> I have to design cic interpolation filter using system generator.I am >> trying to find any single application like in wireless area or in
audio
>> signal.So can anyone please suggest me? > >You can use it as a filter. Maybe, if you are doing a sampling rate >increase, you >need filter the upsampled signals for removing the images. However, >note that the filter >frequency response is not flat and may affect the pass band of the >signal. > >You can read a nice article on CIC by Richard Lyons @ >http://www.us.design-reuse.com/articles/article10028.html >Also, I have tried to provide some small pieces of matlab code for cic >filter at >http://dsplog.blogspot.com/2007/07/example-of-cascaded-integrator-comb.html > >Hope this helps. > >Regards, >Krishna >http://dsplog.blogspot.com > >Hi there
Thanks for your help.I have gone through that article & its really helpful.I am going to design cic interpolation filter for the application of QPSK modulator so can you please suggest me how?Actually i am new in this field thatswy getting difficulties in understanding so please help me. Thanks