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This paper presents a technique to synthesize low-complexity high-selectivity arbitrary-bandwidth finite impulse response (FIR) digital filters using the frequency-response masking (FRM) technique. A serial masking scheme is used to perform the masking task in two stages lowering the complexity of the masking filters. The bandedge shaping filter is implemented as a prefilter-equalizer cascade lowering...
This paper presents a technique for the synthesis of very sharp IIR filter using the frequency response masking (FRM) technique. Both the bandedge shaping and masking filters are recursive filters. The filter is optimized jointly using semi-infinite programming. Bounded input bounded output (BIBO) stability is ensured by imposing constraints on the multiplier coefficients during the optimization process...
This paper presents a hybrid Taguchi genetic algorithm (HTGA) to optimize all coefficient values of the FRM filters simultaneously. The HTGA approach is a method combining the traditional genetic algorithm, which has a powerful global exploration capability, with the Taguchi method, which can exploit the optimum offspring. The Taguchi method is an experimental design method, which is inserted between...
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