Title :
A new frequency-response masking structure with reduced complexity for FIR filter design
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
A new method to reduce the number of multipliers in design of sharp FIR filters by the frequency-response masking (FRM) technique is presented. The success of the proposed method is based on a modified FRM approach where one of the subfilters in the FRM approach is implemented by a prefilter-equalizer technique. We have shown by example that the proposed method yields additional savings of 20% in the number of multipliers compared to the original FRM approach
Keywords :
FIR filters; circuit complexity; digital arithmetic; digital filters; filtering theory; frequency response; FIR filter design; complexity reduction; frequency-response masking structure; multipliers reduction; prefilter-equalizer technique; subfilter implementation; Delay; Digital signal processing; Electronic mail; Finite impulse response filter; Frequency response; Low pass filters; Multimedia systems; Nonlinear filters; Telephony; Transfer functions;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921144
