NDLI: Improved CDF predistortion method and experimental results for HF power amplifier

Content Provider	IEEE Xplore Digital Library
Author	Lou Jingyi Gao Jun Qu Xiaoxu Chen Lin
Copyright Year	2010
Description	Author affiliation: TSINGHUA TONGFANG Factory No. 713, Jiujiang, China (Chen Lin) \|\| College of Electronic Engineering Naval University of Engineering, Wuhan, China (Lou Jingyi; Gao Jun; Qu Xiaoxu)
Abstract	Performance of conventional baseband digital predistortion method for power amplifiers (PAs) degrades severely as the accuracy of loop delay compensation (LDC) decreases. The existing LDC error free method based on cumulative distribution function (CDF) neglects the phase nonlinearity of PA and therefore further application is limited. An improved CDF predistortion method is proposed in this paper, which considers not only amplitude nonlinearity but also phase nonlinearity of PAs. Experiment based on High Frequency (HF) PA is done, and the results show that the proposed method works well in compensating the amplitude and phase nonlinearities of HF PA, and the performance in third-order intermodulation (3IM) of the PA output can be improved by 23 dB, but the improvement of the conventional CDF method is 8 dB.
Starting Page	1
Ending Page	4
File Size	493922
Page Count	4
File Format	PDF
ISBN	9781424475568
e-ISBN	9781424475551
e-ISBN	9781424475544
DOI	10.1109/WCSP.2010.5631961
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Baseband Digital signal processing CDF method Predistortion Power Amplifier Table lookup Discrete histogram function Field programmable gate arrays Gain Baseband predistortion
Content Type	Text
Resource Type	Article

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