Howtosignalprocessing
What is a CIC compensation filter?
CIC compensation decimators are multirate FIR filters that can be cascaded with CIC decimators to mitigate the drawbacks of the CIC filters. CIC decimation filters are used in areas that require high decimation. These filters are popular in ASICs and FPGAs, since they do not have any multipliers.
How does a CIC filter work?
A CIC filter consists of one or more integrator and comb filter pairs. In the case of a decimating CIC, the input signal is fed through one or more cascaded integrators, then a down-sampler, followed by one or more comb sections (equal in number to the number of integrators).
What is CIC decimation?
The CIC Decimation block performs a sample rate decrease (decimation) on an input signal by an integer factor. Cascaded Integrator-Comb (CIC) filters are a class of linear phase FIR filters comprised of a comb part and an integrator part. The block supports real and complex fixed-point inputs.
