DOI码：10.1109/LMWC.2022.3192925

所属单位：中国科学技术大学

教研室：电子工程与信息科学系

发表刊物：IEEE Microwave and Wireless Components Letters

项目来源：国家自然科学基金 61471333

关键字：Basis manifold regularization (BMR), digital predistortion (DPD), power amplifiers (PAs), signal alignment, undersampling

摘要：Undersampling is an effective way to reduce the cost of digital predistortion (DPD), but it poses challenges for signal alignment, especially for fractional delay alignment. In this letter, a Taylor expansion-based method for fractional delay approximation solution is proposed. To verify the proposed alignment algorithm, the basis manifold regularization (BMR) is introduced to ensure that the DPD can converge to a satisfactory performance even at an ultralow sampling rate. Simulations and experimental tests demonstrate that the proposed method not only has high alignment accuracy but also low complexity in comparison with traditional methods.

合写作者：Wen Qiao,Guichen Yang

第一作者：Chengye Jiang (姜成业)

论文类型：期刊论文

通讯作者：Falin Liu

学科门类：工学

文献类型：J

卷号：32

期号：12

页面范围：1487-1490

是否译文：否

发表时间：2022-12-06

收录刊物：SCI、EI