“…Therefore, a lot of effort in fixed-point FIR filter design has gone into optimizing for resource use. In this context, the problem of finding a minimal adder circuit for a given filter specification was addressed by several authors [1], [2], [4], [5], [7], [9], [15], [19]. However, to the best of our knowledge, no previous work has addressed the design of multiplierless FIR filters in an optimal way.…”