DocumentCode :
464966
Title :
A Diversity Controlled Genetic Algorithm for Optimization of FRM Digital Filters over DBNS Multiplier Coefficient Space
Author :
Kilambi, Sai Mohan ; Nowrouzian, Behrouz
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta.
fYear :
2007
fDate :
27-30 May 2007
Firstpage :
2331
Lastpage :
2334
Abstract :
This paper presents a novel diversity controlled (DC) genetic algorithm (GA) for the optimization of frequency-response masking (FRM) FIR digital filters over the double base number system (DBNS) multiplier coefficient space. The use of DBNS multiplier coefficients reduces the complexity and power consumption in the hardware implementation of the resulting FRM FIR digital filters. A direct application of GAs to the design of FRM FIR digital filters may result in chromosomes which do not conform to the DBNS format due to the underlying crossover and mutation operations. The proposed algorithm uses a DBNS based indexed look-up table (LUT) to ensure generation of valid DBNS multiplier coefficients through out the course of genetic optimization. An application example is given for the design of an FRM FIR lowpass digital filter. The resulting FIR digital filter outperforms a corresponding infinite-precision digital filter obtained by using the Parks-McClellan technique.
Keywords :
FIR filters; digital filters; genetic algorithms; low-pass filters; power consumption; table lookup; FIR digital filters optimization; Parks-McClellan technique; diversity controlled genetic algorithm; double base number system multiplier coefficient space; frequency-response masking; genetic optimization; infinite-precision digital filter; look-up table; lowpass digital filter; power consumption; Biological cells; Control systems; Digital filters; Energy consumption; Finite impulse response filter; Frequency diversity; Genetic algorithms; Genetic mutations; Hardware; Table lookup;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
Type :
conf
DOI :
10.1109/ISCAS.2007.378855
Filename :
4253142
Link To Document :
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