An Efficient Filter Design for Active Noise Control System

Abstract Active noise control (ANC) is a method to eliminate noise in many applications such as industries, automobiles, home appliances, etc. The system mainly consists of an adaptive filter section and is implemented using a series of adders and multipliers. In this work, several adders and multipliers are compared and the optimized ones are chosen for speed and area efficiency. In the proposed system, conventional adders and multipliers are replaced with high speed area efficient spanning tree adders and modified Vedic multipliers. Comparison of the proposed system with the existing one shows a hardware efficiency of 4.8% and delay reduction of 40.41%. The system simulation is validated in Xilinx 14.2 ISE and synthesized in Xilinx Virtex-5 FPGA.