Using Global Value Numbering Algorithm for Finite Impulse Response Filter Design

Finite duration Impulse Response (FIR) filter has found enormous applications in the field of communication and signal processing for a number of encouraging features associated with it like phase linearity, guaranteed stability, etc. Reduction of computational complexity of digital hardware has drawn the special attention of researchers in recent past. Proper emphasis is needed in this regard towards the settlement of computationally efficient as well as functionally competent design of digital systems. In this communication, we have made one novel attempt for designing multiplier-free Finite duration Impulse Response (FIR) digital filter using Global Valued Numbering. The Aim of this research is to design a low cost finite impulse response filter using the concept of faithfully rounded truncated multipliers. The optimization of bit width and the hardware resources are done with good accuracy. In direct FIR filter the multiple constant multiplication are implemented using the improved version of truncated multipliers.