Title :
Pipelined Cordic based QRD-RLS adaptive filtering using matrix lookahead
Author :
Jun Ma ; Deprettere, Ed F. ; Parhi, Keshab K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
In this paper, the matrix lookahead transformation is developed to achieve fine-grain pipelining for Cordic based QRD-RLS adaptive filtering algorithm. Various implementation styles are proposed. They include pipelining, block processing, and incremental block processing. The proposed architectures can operate at arbitrarily high sample rates, and consist of only Givens and a few Gaussian rotations which can be mapped onto a Cordic based Jacobi specific dataflow processor
Keywords :
adaptive filters; adaptive signal processing; least squares approximations; pipeline processing; Cordic based; Gaussian rotations; Givens; Jacobi specific dataflow processor; QRD-RLS; adaptive filtering; block processing; fine-grain pipelining; incremental block processing; pipelining; Adaptive filters; Adaptive signal processing; Arithmetic; Array signal processing; Filtering algorithms; Jacobian matrices; Least squares methods; Pipeline processing; Signal processing algorithms; USA Councils;
Conference_Titel :
Signal Processing Systems, 1997. SIPS 97 - Design and Implementation., 1997 IEEE Workshop on
Conference_Location :
Leicester
Print_ISBN :
0-7803-3806-5
DOI :
10.1109/SIPS.1997.626110
