High-decimation digital filters
- 1 January 1991
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1613-1616 vol.3
- https://doi.org/10.1109/icassp.1991.150576
Abstract
The architecture of an efficient high-decimation rate filter is presented. A high-decimation rate filter can extract narrowband signal intelligence from a wideband signal. As a result, it is important to many signal processing applications found in communications and instrumentation. The presented high-decimation rate filter is a multi-rate system consisting of a cascaded integrator-comb (CIC) section and a finite impulse response (FIR) filter. The function of the CIC section is to perform efficient high-decimation filtering over the entire frequency band. The function of the FIR filter is to achieve prespecified transition band performance at baseband. The authors investigate the CMOS implementation of a 33 MHz high-decimation rate filter, its hardware implementation, and its performance. Examples of its use are also provided.Keywords
This publication has 1 reference indexed in Scilit:
- An economical class of digital filters for decimation and interpolationIEEE Transactions on Acoustics, Speech, and Signal Processing, 1981