Title :
Solid State Power Amplifier Linearization Using the Concept of Best Approximation in Hilbert Spaces
Author :
Aghasi, A. ; Ghorbani, A. ; Amindavar, H. ; Karkhaneh, H.
Author_Institution :
Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran
Abstract :
Using the mathematical concept of best approximation in Hilbert spaces a predistorter structure is suggested to compensate both AM/AM and AM/PM conversion characteristics of a solid state power amplifier. To verify the effects of this linearization we generally consider it in a QAM signal transmission in an additive white Gaussian noise channel. The results are compared with the ideal linear case
Keywords :
AWGN channels; Hilbert spaces; approximation theory; linearisation techniques; power amplifiers; quadrature amplitude modulation; AM-AM conversion; AM-PM conversion characteristics; Hilbert spaces; QAM signal transmission; additive white Gaussian noise channel; best approximation method; predistorter structure; solid state power amplifier linearization; Additive white noise; Broadband amplifiers; Hilbert space; Nonlinear distortion; Power amplifiers; Predistortion; Quadrature amplitude modulation; Solid modeling; Solid state circuits; Space technology;
Conference_Titel :
Communications, Circuits and Systems Proceedings, 2006 International Conference on
Conference_Location :
Guilin
Print_ISBN :
0-7803-9584-0
Electronic_ISBN :
0-7803-9585-9
DOI :
10.1109/ICCCAS.2006.285158
