Title :
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
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;
Conference_Titel :
Circuits and Systems, 1998. Proceedings. 1998 Midwest Symposium on
Conference_Location :
Notre Dame, IN
Print_ISBN :
0-8186-8914-5
DOI :
10.1109/MWSCAS.1998.759502
