Two-stage CIC-based decimator with improved characteristics
- 1 January 2010
- journal article
- Published by Institution of Engineering and Technology (IET) in IET Signal Processing
- Vol. 4 (1), 22-29
- https://doi.org/10.1049/iet-spr.2008.0160
Abstract
A simple two-stage multiplierless cascaded–integrator–comb (CIC)-based decimator is presented. The first stage is a cascaded CIC filter whereas the second stage is a cascaded CIC filter and a second-order multiplierless compensator. The proposed decimator can be realised without filtering at high input rate by making use of the polyphase decomposition of the comb filter in the first stage. The proposed filter exhibits high aliasing attenuation and a low passband droop. The design parameters are the decimation factors, M1 and M2, numbers of cascaded CIC filters L and K, and parameter b of the compensator.Keywords
This publication has 7 references indexed in Scilit:
- Simple method for compensation of CIC decimation filterElectronics Letters, 2008
- Design of CIC roll-off compensation filter in a W-CDMA digital IF receiverDigital Signal Processing, 2006
- Reducing CIC filter complexityIEEE Signal Processing Magazine, 2006
- Low-power decimator design using approximated linear-phase N-band IIR filterIEEE Transactions on Signal Processing, 2006
- Synthesis of very sharp Hilbert transformer using the frequency-response masking techniqueIEEE Transactions on Signal Processing, 2005
- Application of filter sharpening to cascaded integrator-comb decimation filtersIEEE Transactions on Signal Processing, 1997
- An economical class of digital filters for decimation and interpolationIEEE Transactions on Acoustics, Speech, and Signal Processing, 1981