PRE-DISTORTION PROCESSING DEVICE AND METHOD

摘要

Provided are a pre-distortion processing device and method, the device comprising: an auxiliary feedback module for extracting a non-linear distortion signal from an analog signal, and inputting an obtained feedback signal corresponding to the non-linear distortion signal into an auxiliary model coefficient training module; the auxiliary model coefficient training module for training an auxiliary coefficient according to the feedback signal and a pre-distortion signal, and transmitting to a pre-distortion processing module a first auxiliary coefficient obtained by training; a radio-frequency signal feedback module for extracting a fundamental wave feedback signal; a pre-distortion model coefficient training module for training a pre-distortion coefficient according to the pre-distortion signal and the fundamental wave feedback signal, and transmitting the obtained pre-distortion coefficient to the pre-distortion processing module; and the pre-distortion processing module for conducting non-linear modeling according to the first auxiliary coefficient and the pre-distortion coefficient, conducting pre-distortion processing on an input intermediate-frequency signal, and outputting the pre-distortion signal obtained via the pre-distortion processing.