Performance of Multiplierless FIR Filter based on CSD and Binary: A Comparative Study
N. Sajwan, Anil Kumar, Ila Sharma, L. K. Balyan · 2019
In this paper, a comparative study of binary and CSD representation forms on filter coefficients has been presented for acute justification of their selection for designing multiplierless finite impulse response (FIR) filter. For this purpose, a well-known computationally efficient nature-inspired cuckoo search optimization algorithm (CSA) is exploited for optimization perspective. An objective function is constructed to minimize the mean square error of designed filter to its ideal response, and it has been observed that the least number of adders and signed power of two terms (SPTs) are acquired when CSD representation is used.