使用勒让德多项式的数字预失真波段25发射机

A. Reddy
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引用次数: 0

摘要

本文讨论了以勒让德多项式为正交多项式基的宽带无线应用数字预失真器的实现。本实施方案讨论了使用宽带放大器的多载波配置。基于多项式函数的结构广泛应用于功率放大器和预失真器。结构中较高的非线性阶数倾向于增加数值稳定性。基于正交基的预失真器是基于正交多项式进行讨论的。所讨论的正交多项式基具有鲁棒性和稳定性,满足邻信道功率比(ACPR)的光谱发射要求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Digital pre-distortion using Legendre polynomials for band 25 transmitters
In this paper, we discuss the implementation of a digital pre-distorter for wideband wireless applications using Legendre polynomials as the orthogonal polynomial basis. The implementation discusses a multicarrier configuration using a wideband amplifier. Structures based on polynomial functions are widely used for both power amplifiers (PA's) and predistorters. Higher non-linear orders in the structure tend to increase the numerical stability. Pre-distorters based on orthogonal basis which is discussed based on orthogonal polynomials. The orthogonal polynomial basis discussed is robust and stable and meets the spectral emissions requirements with regards to the adjacent channel power ratio (ACPR).
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