Title :
Architectural optimization of decimation filter using bitstream operation in GSM audio codec
Author :
Kuriakose, Jijo ; Ristic, Sasa ; De Stegge, Dennis Aan ; De Cremoux, Guillaume
Author_Institution :
Bus. Line Mobile Mixed-Signal Solutions, Philips Semicond., Nijmegen, Netherlands
Abstract :
This paper proposes an efficient architectural optimization method for the decimation stages in single bit sigma-delta modulators using multiplier-less FIR filters over direct implementation of FIR filters P.P. Vaidyanathan (1990), R.E. Crichiere (1983) for GSM applications. The proposed method uses adders to implement multiplication in filters.
Keywords :
FIR filters; audio coding; cellular radio; circuit optimisation; codecs; minimisation; sigma-delta modulation; GSM audio codec; architectural optimization method; bitstream operation; decimation filter; hardware cost minimisation; multiplier-less FIR filters; multirate signal processing; polyphase filters; single bit sigma-delta modulators; Codecs; Digital filters; Digital systems; Electronic mail; Finite impulse response filter; Frequency; GSM; Hardware; Sampling methods; Signal processing;
Conference_Titel :
Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2003. TELSIKS 2003. 6th International Conference on
Print_ISBN :
0-7803-7963-2
DOI :
10.1109/TELSKS.2003.1246236
