Title :
A new stable pipelined IIR digital filter structure
Author :
Jiang, Zhongnong ; Willson, Alan N., Jr.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A generalized clustered look-ahead transformation for realizing stable pipelined IIR digital filters is presented. It is shown that this improvement achieves more efficient hardware architectures than those created by using the scattered look-ahead transformation, at the price of a small degradation in processing speed. With only one more multiplier/accumulator in the numerator and one more carry-save adder in the denominator, the processing speed of a second-order IIR digital filter can be increased by a factor of nearly 2 over the conventional implementation
Keywords :
IIR filters; circuit stability; digital filters; pipeline arithmetic; IIR digital filter structure; carry-save adder; clustered look-ahead transformation; denominator; efficient hardware architectures; multiplier/accumulator; numerator; processing speed degradation; second-order digital filter; stable pipelined digital filter; Adders; Degradation; Delay; Digital filters; Hardware; IIR filters; Pipeline processing; Scattering; Stability; Transfer functions;
Conference_Titel :
Circuits and Systems, 1993., Proceedings of the 36th Midwest Symposium on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-1760-2
DOI :
10.1109/MWSCAS.1993.342931
