High performance receiving and processing technology in satellite beam hopping communication

作     者：ZHAI Shenghua HUI Tengfei GONG Xianfeng ZHANG Zehui GAO Xiaozheng YANG Kai ZHAI Shenghua;HUI Tengfei;GONG Xianfeng;ZHANG Zehui;GAO Xiaozheng;YANG Kai

作者机构：School of Communication EngineeringXi’Dian UniversityXian 710126China CAST(China Academy of Space Technology)-Xi’an Institute of Space Radio TechnologyXi’an 710010China School of Cyberspace Science and TechnologyBeijing Institute of TechnologyBeijing 100081China School of Information and ElectronicsBeijing Institute of TechnologyBeijing 100081China 

出 版 物：《Journal of Systems Engineering and Electronics》 (系统工程与电子技术（英文版）)

年 卷 期：2024年第35卷第4期

页      面：815-828页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：This work was supported by the Key Research and Development Program of Shaanxi(2022ZDLGY05-08) the Application Innovation Program of CASC(China Aerospace Science and Technology Corporation)(6230107001) the Research Project on Civil Aerospace Technology(D040304) the Research Project of CAST(Y23-WYHXJS-07) the Research Foundation of the Key Laboratory of Spaceborne Information Intelligent Interpretation(2022-ZZKY-JJ-20-01) 

主　　题：beam-hopping high throughput satellite high per-formance reception processing 

摘      要：Beam-hopping technology has become one of the major research hotspots for satellite communication in order to enhance their communication capacity and ***,beam hopping causes the traditional continuous time-division multiplexing signal in the forward downlink to become a burst signal,satellite terminal receivers need to solve multiple key issues such as burst signal rapid synchronization and high-per-formance ***,this paper analyzes the key issues of burst communication for traffic signals in beam hopping sys-tems,and then compares and studies typical carrier synchro-nization algorithms for burst ***,combining the requirements of beam-hopping communication systems for effi-cient burst and low signal-to-noise ratio reception of downlink signals in forward links,a decoding assisted bidirectional vari-able parameter iterative carrier synchronization technique is pro-posed,which introduces the idea of iterative processing into car-rier *** at the technical characteristics of communication signal carrier synchronization,a new technical approach of bidirectional variable parameter iteration is adopted,breaking through the traditional understanding that loop struc-tures cannot adapt to low signal-to-noise ratio burst ***,combining the DVB-S2X standard physical layer frame format used in high throughput satellite communication systems,the research and performance simulation are *** results show that the new technology proposed in this paper can significantly shorten the carrier synchronization time of burst signals,achieve fast synchronization of low signal-to-noise ratio burst signals,and have the unique advantage of flexible and adjustable parameters.