Design and Implementation of CIC Filter with Matlab and FPGA

This article describes the design of a CIC filter based on the signal processing theory.Because of its structure only using the adder and the delay devices without multiplier,it is very suitable for FPGA to achieve the CIC filter.This article first analyses the theory,performance and impact parameters of the CIC filter.Then,design the CIC filter to meet the system requirements with the FDATool of MATLAB,and use simulink to set up a model and simulate to verify whether the performance of the CIC filter meets the requirements.In the end,we achieves the CIC filter of this structure with FPGA,and carries out the simulation,integrated authentication.