A new hybrid CSE technique for multiplier-less FIR filter
Ila Sharma, Anil Kumar, L. K. Balyan, Anurag Kumar Singh · 2017
In two recent contributions, minimization of number of adders in realization of digital finite impulse response (FIR) filter has been discussed. The proposed method extends the concept of these techniques to further reduce the requirement of adders in FIR filter for different applications. This paper is based on merging of concepts involved in vertical and horizontal common sub-expression elimination (CSE) delineated for designing a filter that achieves adequate filter characteristics with minimum number of adders.