在WCDMA等宽带通信系统中，射频功率放大器记忆效应明显，传统的无记忆预失真技术无法达到理想的线性化效果。
In broadband communication systems, such as WCDMA, memory effects of RF power amplifiers (PAs) are significant and memoryless predistortion techniques cannot linearize PAs effectively.
因此，无记忆预失真器不能校正放大器的记忆非线性失真。
So tranditional memoryless predistortion can not compensate memory nonlinear distortion of PA.
该模型由一个无记忆非线性元件后接一个线性时滞环节组成，是描述非线性系统的一种基本模型形式。
The Hammerstein model, which consists of a zero-memory non-linear element followed by a linear time-delayed plant, is one of the basic models that describe a non-linear characteristic.
然后详细阐述了连续相位调制器分解模型，该模型可以分解为一个线性连续相位编码器（CPE）和无记忆调制器（MM）；
Secondly, a decomposition model of CPM system is elaborated, which shows that a CPM system can be decomposed into a continuous-phase encoder (CPE) and a memoryless modulator (MM).
然后详细阐述了连续相位调制器分解模型，该模型可以分解为一个线性连续相位编码器（CPE）和无记忆调制器（MM）；
Secondly, a decomposition model of CPM system is elaborated, which shows that a CPM system can be decomposed into a continuous-phase encoder (CPE) and a memoryless modulator (MM).
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