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Efficient allocation of power of two terms in FIR digital filter design using tabu search

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4 Author(s)
Traferro, S. ; Dipt. di Elettronica e Autom., Ancona Univ., Italy ; Capparelli, F. ; Piazza, F. ; Uncini, A.

This paper concerns the design of FIR filters using quantized coefficients belonging to a sum of signed power-of-two terms (SPT) domain. Unlike other SPT filter design approaches, we added a global constraint that a priori fixes the total number of shift registers; thus each coefficient can be represented using different precision. The difficult FIR filter design optimization task, is solved by a specific Tabu Search (TS) method. Several experimental results and comparisons with other well known approaches, demonstrate the effectiveness of this filter architecture and the proposed optimization algorithm

Published in:

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on  (Volume:3 )

Date of Conference:

Jul 1999