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Paper Abstract and Keywords
Presentation 2007-07-19 13:10
AN ADAPTIVE PREDISTORTION METHOD BASED ON ORTHOGONAL POLYNOMIAL EXPANSION FOR NONLINEAR DISTORTION COMPENSATION
Seiji Ohmori (Kyushu Univ.), Xu Guangsheng (NTT), Osamu Muta, Yoshihiko Akaiwa (Kyushu Univ.) RCS2007-34
Abstract (in Japanese) (See Japanese page) 
(in English) Adaptive predistorter is an effective technique to compensate nonlinear distortion in a power amplifier. As a method to improve the parameter convergence speed in the predistorter, a series expansion technique with an orthogonal polynomial for the power amplifier with memory effect, where the parameters of predistorter based on orthogonal polynomial for the power amplifier with memory effect, where the parameters of predistorter are determined so as to minimize out-of-band radiation components detected by high pass filter(HPF). With computer simulation using the Advanced Design System(ADS) software, we show that the adaptive predistorter using orthogonal polynomials achieves faster convergence time than that with that of non-orthogonal one, while nonlinear distortion is compensated by memory predistorter using orthogonal polynomials
Keyword (in Japanese) (See Japanese page) 
(in English) Predistorter / Orthogonal polynomial expansion / Nonlinear distortion compensation / Out-of-band radiation / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 147, RCS2007-34, pp. 31-36, July 2007.
Paper # RCS2007-34 
Date of Issue 2007-07-12 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2007-34

Conference Information
Committee NS RCS  
Conference Date 2007-07-19 - 2007-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Kitami Institute of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2007-07-NS-RCS 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) AN ADAPTIVE PREDISTORTION METHOD BASED ON ORTHOGONAL POLYNOMIAL EXPANSION FOR NONLINEAR DISTORTION COMPENSATION 
Sub Title (in English)  
Keyword(1) Predistorter  
Keyword(2) Orthogonal polynomial expansion  
Keyword(3) Nonlinear distortion compensation  
Keyword(4) Out-of-band radiation  
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1st Author's Name Seiji Ohmori  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Xu Guangsheng  
2nd Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
3rd Author's Name Osamu Muta  
3rd Author's Affiliation Kyushu University (Kyushu Univ.)
4th Author's Name Yoshihiko Akaiwa  
4th Author's Affiliation Kyushu University (Kyushu Univ.)
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Speaker Author-1 
Date Time 2007-07-19 13:10:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2007-34 
Volume (vol) vol.107 
Number (no) no.147 
Page pp.31-36 
#Pages 5 
Date of Issue 2007-07-12 (RCS) 

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