Title :
One structure for efficient narrow-band bandpass FIR filters
Author :
Jovanovic-Dolecek, G. ; Diaz-Carmona, J.
Author_Institution :
Dept. of Electron., Nat. Inst. of Astrophys. Opt. & Electron., Puebla, Mexico
Abstract :
This paper presents a narrow-band bandpass FIR filter design with a small number of multipliers per output sample (NMPS). The proposed method is based on the use of the pipelining/interleaving (PI) technique within a quadrature modulation structure, where only one narrow-band lowpass filter is required. In order to reduce the NMPS, the narrow-band lowpass filter is designed with an interpolated finite impulse response (IFIR) filter. The interpolating filter is implemented by using a sharpened cascade integrator comb (CIC) filter. This results in a considerable reduction of complexity.
Keywords :
FIR filters; band-pass filters; comb filters; interpolation; linear phase filters; low-pass filters; multiplying circuits; pipeline processing; CIC filter; IFIR filter; NMPS; PI technique; bandpass FIR filters; complexity reduction; digital filter implementation; interpolated finite impulse response filter; interpolating filter; linear-phase FIR filter; lowpass filter; multipliers per output sample number; narrow-band filters; pipelining/interleaving technique; quadrature modulation; sharpened cascade integrator comb filter; Band pass filters; Clocks; Filtering; Finite impulse response filter; Frequency; Narrowband; Optical filters; Passband; Signal design; Signal processing;
Conference_Titel :
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on
Print_ISBN :
0-7803-7523-8
DOI :
10.1109/MWSCAS.2002.1187079
