Area Optimized Fpga Implementation of Adaptive Beamformer

Quadratic Rotation decomposition (QRD) based recursive least squares (RLS) algorithm can be used in variety of communication applications and its low complexity implementation can be of interest. In this paper we have presented an application of QRD based RLS algorithm using Coordinate Rotation by Digital Computer (CORDIC) operator for implementing an adaptive beamformer. FPGA resource estimates along with actual implementation results have been presented and are being compared with its existing implementation. Key words— Adaptive beamformer, Coordinate Rotation by Digital Computer, Field Programmable Gate Array, Quadratic Rotation decomposition, Recursive Least Squares.