Title :
Analysis and solution of errors in feedback path of a complex gain baseband predistorter
Author :
Chen, Zhang ; Chen, Kunhe ; Fan, Derui
Author_Institution :
Nanjing Telecommun. Technol. Inst., Nanjing, China
Abstract :
The complex gain baseband adaptive predistorter is flexible and practical. However, it´s quite sensitive to errors in the linearization system. This paper analyzes and simulates the effect of errors in feedback path on linearization performance, and presents the protective considerations in algorithm design to ensure the convergence of the adaptation. The simulation results demonstrate that protection in algorithm can effectively eliminate the effect of errors.
Keywords :
error statistics; nonlinear distortion; power amplifiers; radiofrequency amplifiers; complex gain baseband predistorter; feedback path errors; linearization system; Algorithm design and analysis; Baseband; Convergence; Feedback; Nonlinear distortion; Predistortion; Protection; Radio frequency; Radiofrequency amplifiers; Table lookup; adaptation; convergence; feedback; predistortion;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
DOI :
10.1109/ICMMT.2010.5525023
