调幅/调幅特性对数字预失真DVB-S2/S2X系统性能影响的估计

2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI:10.1109/EExPolytech56308.2022.9950945

D. Puzko, Yuriy Batov, Dmitry A. Tkachenko, A. Gelgor, P. Angueira, J. Montalbán

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引用次数: 0

摘要

数字卫星广播系统DVB-S2和DVB-S2X是向消费者提供高清电视和超高清电视服务的良好候选者。在这些标准中引入了带有调幅的新型APSK信号星座，以提高可能的数据速率。使用数字预失真技术可以大大提高这些系统的性能，并降低所需的信噪比阈值。本文研究了卫星系统高功率放大器(HPA)中调幅/调幅相位畸变的影响，结果表明，对于Saleh模型描述的典型HPA放大器，调幅/调幅相位畸变的影响小于调幅/调幅振幅畸变的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Estimation of AM/PM Characteristics Impact on Performance of DVB-S2/S2X System with Digital Predistortion

Digital Satellite Broadcasting Systems DVB-S2 and DVB-S2X are good candidates for delivery of HDTV and UHDTV services to consumers. New types of APSK signal constellations with amplitude modulation are introduced in these standards to increase possible data rates. Use of digital predistortion techniques may considerably improve the performance of these systems and decrease required SNR thresholds. The paper investigates the impact of AM/PM phase distortions in high power amplifiers (HPA) of satellite systems and shows that for typical HPA amplifiers described by Saleh model the impact of AM/PM distortions is less considerable than impact of amplitude distortions AM/AM.

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2022 International Conference on Electrical Engineering and Photonics (EExPolytech)

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