DOI码：10.1109/JMW.2026.3705081

所属单位：南京航空航天大学集成电路学院，中国科学技术大学信息学院

发表刊物：IEEE Journal of Microwaves

项目来源：NSFC 62371436, 62571234

关键字：Basis function, digital predistortion (DPD), memory fading, memory width, power amplifiers (PAs), truncated models, Volterra series.

摘要：A novel generalized nonuniform memory polynomial (GNMP) model is proposed for be havioral modeling and digital predistortion (DPD) of RF power amplifiers (PAs). The GNMP model uses a structure with simultaneous fading of memory depth and relative memory width. This paper proposes the concepts of “memory width” and “relative memory width” based on the close relationship between cross-terms and memory effect in Volterra basis functions. The memory width compensates for the short coming of using only the memory depth to describe the memory effect while avoiding the performance bottleneck caused by the fixed cross-term form. The even-order basis function is also introduced to improve the performance of the behavioral model with a further simplified form. The structural features of the GNMP model allow for more freedom in static nonlinearity and dynamic memory effect, making it superior in modeling and linearizing PAs with complex characteristics. Experimental tests on two different PAs show that the proposed GNMP model can achieve almost the same or better performance than the traditional model for the same complexity. More importantly, at an acceptable complexity, the GNMP model can further break the performance bottleneck of the traditional model by a few dB of typical metrics.

第一作者：Renlong Han

合写作者：Falin Liu

论文类型：期刊论文

通讯作者：Siping Gao

论文编号：10.1109/JMW.2026.3705081

卷号：Online

期号：Online

页面范围：1-15

是否译文：否

发表时间：2026-06-15