Title :
Efficient allocation of power of two terms in FIR digital filter design using tabu search
Author :
Traferro, S. ; Capparelli, F. ; Piazza, Fruncesco ; Uncini, Aurelio
Author_Institution :
Dipt. di Elettronica e Autom., Ancona Univ., Italy
Abstract :
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
Keywords :
FIR filters; circuit optimisation; digital filters; filtering theory; search problems; shift registers; FIR digital filter design; efficient allocation; filter architecture; filter design optimization task; global constraint; optimization algorithm; power of two terms allocation; quantized coefficients; shift registers; signed power-of-two terms domain; tabu search; Algorithm design and analysis; Approximation error; Design optimization; Digital filters; Electronic mail; Finite impulse response filter; Frequency response; Minimax techniques; Shift registers; Silicon;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.778872
