公开(公告)号：US09979422B1

公开(公告)日：2018-05-22

申请号：US15380757

申请日：2016-12-15

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yih-Min Chen ,  Chin-Kun Lin ,  Ting-Yu Lai ,  Cheih Tu ,  Chen-Chia Ku ,  Chien-Te Yu

IPC: H04K1/02 ,  H04B1/04 ,  H04B1/10 ,  H04B17/11

CPC classification number: H04B1/0475 ,  H04B1/10 ,  H04B17/391

Abstract: An adaptive digital pre-distortion system includes a transmitting module and a receiving module. The transmitting module is configured to receive a first signal and includes a modulator, pre-distortion module, and transmitting circuit. The pre-distortion module is coupled to the modulator to perform a pre-distortion operation in accordance with the first modulation signal and generate a first pre-distortion signal. The transmitting circuit generates a first transmitted signal in accordance with the first pre-distortion signal. The receiving module is configured to receive the first transmitted signal and includes a receiving circuit, demodulator, and prediction module. The prediction module generates a pre-distortion parameter in accordance with a modulation vector error between the second demodulation signal and the first signal and transmits the pre-distortion parameter to the pre-distortion module, wherein the pre-distortion module adjusts the pre-distortion operation of the pre-distortion module in accordance with the pre-distortion parameter.