Design and Implementation of High Performance Adaptive FIR Filter Systems Using QRD-RLS Method

[摘要] In this paper, an adaptive FIR filter hardware architecture with high performance is designed. The RLS (Recursive Least Square) algorithm for adaptive signal processing is explored based on QR decomposition, which uses Givens Rotation algorithm. The Givens Rotation algorithm will be implemented using CORDIC algorithm. This design is suitable for high-speed FPGAs or ASIC design. This QR Design is tested using Xilinx-FPGA as a case study.

[关键词] Adaptive Filter;CORDIC method;Givens Rotation method;QR-Decomposition;RLS algorithm.