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CIC Compensator: Implementation using farrow structure

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chainz87

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Dear All,

I am trying to implement a CIC compensator with the following parameters,

MultirateType: 'Rational Sample Rate Converter'
Response: 'CIC Compensator'
InterpolationFactor: 2031
DecimationFactor: 1250
Specification: 'Fp,Fst,Ap,Ast'
Description: {4x1 cell}
NumberOfSections: 3
DifferentialDelay: 1
NormalizedFrequency: true
Fpass: 0.01
Fstop: 0.2
Apass: 1
Astop: 60

i used fdesign.rsrc statement. Basically I want to perform farrow interpolation and CIC compensation (of CIC decimator of previous stage) with a same filter. So how do i determine the farrow coefficients so that the resulting farrow interpolator has a frequency response similar to the above shown frequency response? In brief: I want to make a farrow filter with frequency response of a CIC compensation filter. This response is explained above.

Regards,
Ali
 

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