基于非线性补偿的广播电视射频放大器线性化技术研究  

Research on Linearization Technology of Broadcast Television Radio Frequency Power Amplifiers Based on Nonlinear Compensation

作　　者：张俊 ZHANG Jun(Yunnan Radio and Television Station,Kunming 650500,China)

机构地区：[1]云南广播电视台,云南昆明650500

出　　处：《电视技术》2025年第2期11-13,共3页Video Engineering

摘　　要：随着现代广播电视发射传输需求的增加,射频放大器的线性性能在提升信号质量中的作用愈发重要。对此,探讨非线性补偿技术在广播电视射频放大器线性化中的应用。通过研究非线性失真的来源,提出一种基于数字预失真的非线性补偿技术,并评估了其在广播电视传输中的实际应用效果。实验结果表明,该方法显著提升了射频放大器的线性性能,有效减少了失真,从而改善了信号传输质量。With the growing demands of modern broadcast television transmission,the linear performance of radio frequency power amplifiers is increasingly crucial for signal quality.This paper explores the application of nonlinear compensation in the linearization of broadcast television radio frequency power amplifiers.A digital predistortion-based nonlinear compensation technique is proposed,and its practical application is analyzed.Experimental results show that this method improves amplifier linearity,reduces distortion,and enhances signal transmission quality.

关 键 词：非线性补偿 射频放大器 数字预失真 

分 类 号：TN934.2[电子电信—信号与信息处理]