公开(公告)号：US06937669B2

公开(公告)日：2005-08-30

申请号：US10308831

申请日：2002-12-03

申请人： Andrew T. Tomerlin ,  Asad Ullah Aman ,  Robert V. Stephens

发明人： Andrew T. Tomerlin ,  Asad Ullah Aman ,  Robert V. Stephens

IPC分类号： H03F1/32 ,  H04L27/36 ,  H04L25/49

CPC分类号： H03F1/3247 ,  H04L27/368

摘要： A predistortion linear power amplifier utilizes several predistortion computation engines to receive a first carrier signal. The predistortion computation engines also receive input from a predistortion algorithm engine. The predistortion algorithm engine receives its data from a predistortion amplifier sensor that monitors the operating characteristics of the amplifier and also from a feedback control circuit that provides frequency correlated input and feedback data. The processed data from the predistortion algorithm engine is then input into the predistortion computation engine along with the carrier signal. An output combiner circuit takes the output of each predistortion computation engine and generates a single correction estimate, which is then input into the nonlinear amplifier for producing a substantially linear output signal.

摘要翻译： 预失真线性功率放大器利用若干预失真计算引擎来接收第一载波信号。 预失真计算引擎还从预失真算法引擎接收输入。 预失真算法引擎从预失真放大器传感器接收其数据，该预失真放大器传感器监视放大器的工作特性，并且还提供提供频率相关输入和反馈数据的反馈控制电路。 然后将来自预失真算法引擎的处理后的数据与载波信号一起输入到预失真计算引擎中。 输出组合器电路获取每个预失真计算引擎的输出并产生单个校正估计，然后输入到非线性放大器中以产生基本线性的输出信号。