Performance Enhancement Of CIC Filters
Abstract- This paper presents comparison between CIC filter, sharpened CIC filter and modified sharpened CIC filter. It
also gives comparison between cascaded CIC cosine filter, modified cascaded CIC cosine filter and modified cascaded CIC
cosine filter with compensator for a decimation factor of 64. Techniques like compensation, cosine prefilters and sharpening
of CIC filters enhance the performance characteristics of CIC filters. Narrowband compensation technique improves the
passband characteristics, cosine prefilters improve the stopband characteristics and sharpening improves both i.e passband
and stopband. Multistage realization furthur improves the performance characteristics of the enhancement techniques.