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A new stable pipelined IIR digital filter structure

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2 Author(s)
Jiang, Z. ; Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA ; Willson, A.N., Jr.

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

Published in:

Circuits and Systems, 1993., Proceedings of the 36th Midwest Symposium on

Date of Conference:

16-18 Aug 1993