In this letter, two basis function multiplexing-based behavioral modeling methods for digital predistortion (DPD) of RF power amplifiers (PAs) are proposed to reduce the running complexity of DPD. The proposed full basis-propagating selection (FBPS) model and reduced-complexity FBPS (RC-FBPS) model give two reasonable ways to multiplex even-order basis functions, extending the basis-propagating selection (BAPS) model which only uses basis function delay and odd-order basis functions. The experimental results confirm that both the proposed FBPS and RC-FBPS models can achieve a good tradeoff between running complexity and performance.

中文翻译：

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射频功率放大器数字预失真的低运行复杂度模型

在这封信中，提出了两种基于基函数复用的射频功率放大器 (PA) 数字预失真 (DPD) 行为建模方法，以降低 DPD 的运行复杂度。提出的全基传播选择（FBPS）模型和降低复杂度的FBPS（RC-FBPS）模型提供了两种合理的方式来复用偶数阶基函数，扩展了仅使用基函数延迟的基传播选择（BAPS）模型和奇数阶基函数。实验结果证实，所提出的 FBPS 和 RC-FBPS 模型都可以在运行复杂度和性能之间取得良好的折衷。