Modified Decimation CIC Filter

The code combines the zerorotation and multistage approach for CIC filter to improve its efficiency

This code has improved the magnitude response of the CIC filter by combining the zero rotation, multistage and sharpening approach. In the two stage approach the zero rotation is applied either to the first stage or second stage so that the pass band droop and stop band attenuation shows the improved results than specific individual approach. The results were compared and attached.