Overlapped segment piece-wise polynomial pre-distortion for the linearisation of power amplifiers in the presence of high PAPR OFDM signals
Overlapped segment piece-wise polynomial pre-distortion for the linearisation of power amplifiers in the presence of high PAPR OFDM signals
复制标题
重叠分段分段多项式预失真，用于在存在高 PAPR OFDM 信号的情况下实现功率放大器的线性化
DOI：
10.1109/mwsym.2012.6259543
复制
发表时间：
2012
期刊：
影响因子：
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通讯作者：
Bensmida S
中科院分区：
文献类型：
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作者：
Bensmida S
提出了一种改进的分段多项式预失真算法，并与经典的无记忆多项式预失真算法进行了比较。所提出的增强型分段多项式预失真使用段之间的重叠来确保总预失真函数中的连续性。重叠的实现允许使用简单的误差估计算法来最小化切换误差。经典的和建议的分段预失真性能进行评估和比较几组多项式系数。所提出的方法是一贯优于经典的多项式预失真所需的系数和线性度的改善。该方法适用于线性化的包络跟踪类J PA在1.7GHz下，在1.4MHz的LTE信号与14.4dB的PAPR。
A modified piece-wise polynomial pre-distortion is proposed, investigated and compared against classic memoryless polynomial pre-distortion. The proposed enhanced piece-wise polynomial pre-distortion uses the overlap between segments to ensure continuity in the total pre-distortion function. The implementation of overlap allows the use of a simple error estimation algorithm to minimise hand over error. The classic and proposed piece-wise pre-distortion performances are assessed and compared for several sets of polynomial coefficients. The proposed method is shown to consistently outperform classical polynomial pre-distortion in terms of required coefficients and linearity improvement. The method is applied for the linearisation of an envelope tracking Class-J PA at 1.7GHz, under a 1.4MHz LTE signal with a 14.4dB PAPR.
用于功率放大器特性线性化的 LUT/参数化数字预失真方法
DOI：
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发表时间：
2008
期刊：
European Microwave Conference
影响因子：
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作者：
M. A. Hussein;Yide Wang;G. Peyresoubes;B. Feuvrie;S. Toutain
通讯作者：
S. Toutain
使用基于阈值分解的分段线性近似对非线性功率放大器进行行为建模
DOI：
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发表时间：
2008
期刊：
IEEE Radio and Wireless Symposium
影响因子：
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作者：
K. Gharaibeh
通讯作者：
K. Gharaibeh