PRE-DISTORTION PROCESSING DEVICE AND METHOD |
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| 申请号 | EP14906288 | 申请日 | 2014-11-19 | 公开(公告)号 | EP3208938A4 | 公开(公告)日 | 2017-10-18 |
| 申请人 | HUAWEI TECH CO LTD; | 发明人 | ZHAO YANQING; YU CHUNLEI; TIAN TINGJIAN; | ||||
| 摘要 | The present invention provides a predistortion processing apparatus and method. The apparatus includes: an auxiliary feedback module, configured to: extract a nonlinear distortion signal from an analog signal, and input an obtained feedback signal corresponding to the nonlinear distortion signal into an auxiliary model coefficient training module; the auxiliary model coefficient training module, configured to: train an auxiliary coefficient according to the feedback signal and a predistortion signal, and transmit a first auxiliary coefficient obtained through training to a predistortion processing module; a radio frequency signal feedback module, configured to extract a fundamental wave feedback signal; a predistortion model coefficient training module, configured to: train a predistortion coefficient according to the predistortion signal and the fundamental wave feedback signal, and transmit an obtained predistortion coefficient to the predistortion processing module; the predistortion processing module, configured to: perform predistortion processing on an input intermediate frequency signal by performing nonlinear modeling according to the first auxiliary coefficient and the predistortion coefficient, and output a predistortion signal obtained through predistortion processing. | ||||||
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