Title :
CORDIC realization of the transversal adaptive filter using a trigonometric LMS algorithm
Author :
Chakraborty, Mrityunjoy ; Dhar, Anindya S. ; Pervin, Suraiya
Author_Institution :
Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India
Abstract :
This paper presents a class of pipelined CORDIC architectures for the LMS-based transversal adaptive filter. For this, an alternate formulation of the LMS algorithm is considered, obtained by expressing the mean square error as a convex function of a set of angle variables that are monotonically related to the filter tap weights. The proposed architectures employ microlevel pipelining and are adjustable to strike tradeoffs between throughput efficiency vis-a-vis hardware complexity
Keywords :
adaptive filters; digital filters; digital signal processing chips; least mean squares methods; pipeline arithmetic; LMS-based transversal adaptive filter; MSE; angle variables; convex function; filter tap weights; hardware complexity; mean square error; microlevel pipelining; pipelined CORDIC architectures; throughput efficiency; transversal adaptive filter; trigonometric LMS algorithm; Adaptive filters; Array signal processing; Filtering; Finite impulse response filter; Hardware; Hypercubes; Least squares approximation; Mean square error methods; Signal processing algorithms; Transversal filters;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.941145
