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ISSS
1997
IEEE

Optimization Method for Broadband Modem FIR Filter Design using Common Subexpression Elimination

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Optimization Method for Broadband Modem FIR Filter Design using Common Subexpression Elimination
- An approach for broadband modem FIR filter design optimization is presented. It addresses the minimization of the number of addersubtractors used in the hardware implementation of a FIR filter (Multiple Constant Multiplication problem). The method is based on identification and elimination of n-bit pattern common subexpressions in a set of filter coefficients by means of an exhaustive search. We give an algorithm description of our solution and demonstrate the performance on selected examples. A comparison of the results obtained by other authors is made and finally optimization and synthesis results on a realistic example, a 64-tap root-raised-cosine filter with 10 bit CSD coefficients is given.
Robert Pasko, Patrick Schaumont, Veerle Derudder,
Added 06 Aug 2010
Updated 06 Aug 2010
Type Conference
Year 1997
Where ISSS
Authors Robert Pasko, Patrick Schaumont, Veerle Derudder, Daniela Durackova
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