A variable-rate filtering system for digital communications

1 January 1999

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

Vol. 3 (15206149) , 1497-1500 vol.3
https://doi.org/10.1109/icassp.1999.756267

Abstract

We propose an efficient programmable transmit-receive digital filter structure consisting of a pulse shaping filter (PSF) and a cascaded integrator-comb (CIC) filter which is applicable to variable-rate digital communication systems. The CIC structure is a hardware-efficient means of constructing programmable interpolation and decimation filters, but it introduces a large amount of intersymbol interference (ISI). We solve this problem by proposing a filter design method that determines the PSF coefficients such that the cascade of the PSF and CIC filter exhibits the desired frequency response.

Keywords

This publication has 7 references indexed in Scilit:

Application of filter sharpening to cascaded integrator-comb decimation filters
IEEE Transactions on Signal Processing, 1997
On the design of FIR digital data transmission filters with arbitrary magnitude specifications
IEEE Transactions on Circuits and Systems, 1991
On the design of optimal equiripple FIR digital filters for data transmission applications
IEEE Transactions on Circuits and Systems, 1988
On half-band, third-band, and Nth-band FIR filters and their design
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1982
An economical class of digital filters for decimation and interpolation
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1981
Comparison of optimal and local search methods for designing finite wordlength FIR digital filters
IEEE Transactions on Circuits and Systems, 1981
Design of optimal finite wordlength FIR digital filters using integer programming techniques
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1980