Title :
High speed frequency response masking filter design using genetic algorithm
Author :
Cen, Ling ; Lian, Yong
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
This paper presents the design of high-speed, multiplier free, arbitrary bandwidth shape FIR filters based on frequency response masking technique (FRM). The FRM filter structure has been modified to improve the throughput by replacing long bandedge shaping filter with several cascaded short filters [Yong Lian, 2000]. Genetic algorithm (GA) is introduced to simultaneously optimize all subfilters in a cascaded connection. The coefficients of all subfilters are quantized to signed power-of-two (SPoT) values to eliminate multipliers in the filter implementation. It is shown by example that the coefficient word length for each cascaded short filter has been reduced significantly.
Keywords :
FIR filters; frequency response; genetic algorithms; signal processing; FIR filters; FRM filter structure; bandedge shaping filter; cascaded short filter; cascaded short filters; filter design; frequency response masking filter; genetic algorithm; high speed frequency response; signed power-of-two values; Algorithm design and analysis; Bandwidth; Delay; Design engineering; Finite impulse response filter; Frequency response; Genetic algorithms; Genetic engineering; Low pass filters; Nonlinear filters;
Conference_Titel :
Neural Networks and Signal Processing, 2003. Proceedings of the 2003 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
0-7803-7702-8
DOI :
10.1109/ICNNSP.2003.1279380
