A simple predistortion algorithm and limits of predistortion

Author

Pierce, William H. ; Aronhime, Peter ; Deng, Jie

Author_Institution

Dept. of Electr. Eng., Louisville Univ., KY, USA

fYear

1998

fDate

9-12 Aug 1998

Firstpage

344

Lastpage

347

Abstract

Predistortion is used in linear, active RC signal processing circuits to compensate for the pole shifts caused by the bandwidth limitations of op amps used. While there are several workable approaches to calculating necessary predistortion parameters, the procedure offered here is simpler than those offered previously. In addition, by means of graphs and examples, the limitations of this process are clearly determined so that the result is a process for which the limitations are known. It is observed that predistortion fails when the actual pole radius reaches about one-third of the ideal pole radius

Keywords

RC circuits; linear network analysis; lumped parameter networks; operational amplifiers; poles and zeros; actual pole radius; bandwidth limitations; linear active RC circuits; op amps; pole shifts; predistortion algorithm; predistortion limits; signal processing circuits; Bandwidth; Capacitors; Circuits; Filtering theory; Frequency; Operational amplifiers; Polynomials; Predistortion; Signal processing algorithms; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1998. Proceedings. 1998 Midwest Symposium on

Conference_Location

Notre Dame, IN

Print_ISBN

0-8186-8914-5

Type

conf

DOI

10.1109/MWSCAS.1998.759502

Filename

759502