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1. 发明申请

WO2006031156A1 AN ARRANGEMENT AND A METHOD RELATING TO SIGNAL PREDISTORTION 审中-公开
标题翻译：一种与信号预测相关的方案和方法
公开(公告)号：WO2006031156A1
公开(公告)日：2006-03-23
申请号：PCT/SE2004/001315
申请日：2004-09-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON , SIHLBOM, Björn , DORBEUS, David
发明人： SIHLBOM, Björn , DORBEUS, David
IPC分类号： H03F1/32
CPC分类号： H03F1/3247
摘要： The present invention relates to a predistortion signal amplifier arrangement comprising digital predistortion means for predistortion of an input signal, a non-linear power amplifier, a predistortion control arrangement comprising error estimation means for estimating the error produced in the predistorted signal and a predistortion look-up table arrangement, the content in which is updated by the estimation means. The predistortion look-up table arrangement comprises at least two look-up tables, which are updated by said estimation means and said at least two look-up tables have different number of table entries. It further comprises a combiner for combining updated values obtained from said at least two look-up tables into a composite value and said composite value comprises a distortion coefficient which is input to said digital predistortion arrangement for signal predistortion.
摘要翻译：预失真信号放大器装置本发明涉及一种预失真信号放大器装置，包括用于输入信号预失真的数字预失真装置，非线性功率放大器，包括误差估计装置的预失真控制装置，用于估计预失真信号产生的误差和预失真查找，其中的内容由估计装置更新。预失真查找表布置包括由所述估计装置更新的至少两个查找表，并且所述至少两个查找表具有不同数目的表条目。它还包括组合器，用于将从所述至少两个查找表获得的更新值组合为复合值，并且所述复合值包括输入到所述用于信号预失真的所述数字预失真装置的失真系数。

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