低峰均比M-APSK波形的功率放大器数字预失真仿真分析  

Analysis of Power Amplifier Digital Pre-Distortion Simulation of Low Peak-to-Average Ratio M-APSK Waveform

作　　者：杨作成[1] 任文成[1] 吴丹[1] 韩军[1] YANG Zuocheng;REN Wencheng;WU Dan;HAN Jun(The 54th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang,Hebei Province,050081 China)

机构地区：[1]中国电子科技集团第54研究所,河北石家庄050081

出　　处：《科技资讯》2024年第18期30-32,共3页Science & Technology Information

摘　　要：针对新一代散射通信对通信距离、传输速率、调制波形的更高需求,对散射通信大功率放大器提出了更高要求。利用星座图分析了M-APSK的峰均比,分析了功率放大器的Volterra级数与记忆多项式两种非线性模型,设计了自适应数字预失真技术的仿真方案,并进行了M-APSK波形下的功率放大器数字预失真仿真。结果表明,功率放大器通过数字预失真可以显著改善M-APSK调制波形信号质量。In response to the higher requirements for communication distance,transmission rate,and modulation waveform in the new generation of scattering communication,higher requirements have been put forward for high-power amplifiers in scattering communication.This article uses constellation diagrams to analyze the peak-to-average ratio of M-APSK,analyzes two nonlinear models of power amplifier,Volterra series and memory poly-nomial,designs a simulation scheme for adaptive digital pre distortion technology,and conducts digital pre distor-tion simulation of power amplifier under M-APSK waveform.The results indicate that power amplifiers can signifi-cantly improve the quality of M-APSK modulation waveform signals through digital pre distortion.

关 键 词：功率放大器 非线性 数字预失真 M-APSK波形 

分 类 号：TN911[电子电信—通信与信息系统]