Title :
A new approach to the design of multiplierless FIR digital filters for quadrature demodulation
Author :
Inkol, Robert J. ; Clouston, Robin ; Herzig, Michel ; Saper, Ronald H.
Author_Institution :
Nat. Defence, Defence Res. Establ., Ottawa, Ont., Canada
Abstract :
A novel approach for designing multiplierless FIR filters for digital quadrature demodulators is presented. The filter coefficients are designed using a two-stage search strategy involving the use of an objective function which considers both the ripple and matching of the in-phase and quadrature filter pass band frequency responses. The results obtained provide evidence of the effectiveness of the proposed design method
Keywords :
FIR filters; demodulation; demodulators; digital filters; filtering theory; frequency response; search problems; digital quadrature demodulators; filter coefficients; inphase filter; matching; multiplierless FIR digital filters design; objective function; pass band frequency response; quadrature demodulation; quadrature filter; ripple; two-stage search; Band pass filters; Demodulation; Design methodology; Digital filters; Finite impulse response filter; Frequency; IIR filters; Matched filters; Passband; Prototypes;
Conference_Titel :
Electrical and Computer Engineering, 1996. Canadian Conference on
Conference_Location :
Calgary, Alta.
Print_ISBN :
0-7803-3143-5
DOI :
10.1109/CCECE.1996.548030
