A variable-rate filtering system for digital communications

Author

Wasserman, L. ; Willson, Alan N., Jr.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

3

fYear

1999

fDate

15-19 Mar 1999

Firstpage

1497

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

digital communication; digital filters; frequency response; interpolation; intersymbol interference; network synthesis; programmable filters; pulse shaping; receivers; transmitters; ISI; PSF coefficients; cascaded integrator-comb filter; filter design method; frequency response; hardware-efficient structure; intersymbol interference; programmable decimation filter; programmable interpolation filter; programmable transmit-receive digital filter; pulse shaping filter; variable-rate digital communication systems; variable-rate filtering system; Attenuation; Band pass filters; Chirp modulation; Demodulation; Digital communication; Digital filters; Filtering; Frequency response; Passband; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on

Conference_Location

Phoenix, AZ

ISSN

1520-6149

Print_ISBN

0-7803-5041-3

Type

conf

DOI

10.1109/ICASSP.1999.756267

Filename

756267