Starlink下行信号的多普勒效应影响分析
TN92; 准确描述多普勒效应对星链(Starlink)传输性能的影响是理解其独特物理层结构的重要前提,为解决这一问题,首先,建立了星地相对运动下的多普勒效应模型并给出Starlink的最大多普勒效应参数;然后,基于Starlink下行信号的时频域结构和参数建立多普勒效应下的信号模型;最后,对下行信号中的3种主要组成部分分别建立多普勒效应下的时频域理论特征.通过仿真验证理论结果的正确性,以期为其他现有和将要部署的低轨道地球卫星通信系统的传输可靠性研究提供一定的参考....
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| Published in | 通信学报 Vol. 45; no. 3; pp. 131 - 141 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
苏州大学电子信息学院,江苏 苏州 215006%嘉兴南湖学院信息工程学院,浙江 嘉兴 314001
25.03.2024
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-436X |
| DOI | 10.11959/j.issn.1000-436x.2024029 |
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| Abstract | TN92; 准确描述多普勒效应对星链(Starlink)传输性能的影响是理解其独特物理层结构的重要前提,为解决这一问题,首先,建立了星地相对运动下的多普勒效应模型并给出Starlink的最大多普勒效应参数;然后,基于Starlink下行信号的时频域结构和参数建立多普勒效应下的信号模型;最后,对下行信号中的3种主要组成部分分别建立多普勒效应下的时频域理论特征.通过仿真验证理论结果的正确性,以期为其他现有和将要部署的低轨道地球卫星通信系统的传输可靠性研究提供一定的参考. |
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| AbstractList | TN92; 准确描述多普勒效应对星链(Starlink)传输性能的影响是理解其独特物理层结构的重要前提,为解决这一问题,首先,建立了星地相对运动下的多普勒效应模型并给出Starlink的最大多普勒效应参数;然后,基于Starlink下行信号的时频域结构和参数建立多普勒效应下的信号模型;最后,对下行信号中的3种主要组成部分分别建立多普勒效应下的时频域理论特征.通过仿真验证理论结果的正确性,以期为其他现有和将要部署的低轨道地球卫星通信系统的传输可靠性研究提供一定的参考. |
| Abstract_FL | Understanding the influence of Doppler effect on the transmission performance of the Starlink system was an important prerequisite to decipher its unique physical layer structure.To this end,firstly a Doppler effect model consider-ing relative motion between the satellites and the earth was established,and the maximum Doppler effect parameters of the Starlink was provided.Subsequently,a signal model under Doppler effect was constructed based on the Starlink downlink time-frequency structure and parameters.Finally,time-frequency domain theoretical characteristics under Dop-pler effect for the three main components of the downlink signal were established.The validity of the theoretical findings is corroborated through simulations,serving as a valuable reference for research on transmission reliability in existing and future low earth orbit satellite communication systems. |
| Author | 林威洪 李喆 朱占宇 邓伟 羊箭锋 |
| AuthorAffiliation | 苏州大学电子信息学院,江苏 苏州 215006%嘉兴南湖学院信息工程学院,浙江 嘉兴 314001 |
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| Author_FL | LI Zhe LIN Weihong DENG Wei ZHU Zhanyu YANG Jianfeng |
| Author_FL_xml | – sequence: 1 fullname: LI Zhe – sequence: 2 fullname: LIN Weihong – sequence: 3 fullname: DENG Wei – sequence: 4 fullname: YANG Jianfeng – sequence: 5 fullname: ZHU Zhanyu |
| Author_xml | – sequence: 1 fullname: 李喆 – sequence: 2 fullname: 林威洪 – sequence: 3 fullname: 邓伟 – sequence: 4 fullname: 羊箭锋 – sequence: 5 fullname: 朱占宇 |
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| DocumentTitle_FL | Analysis of the influence of Doppler effect on Starlink downlink signals |
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| Keywords | low earth orbit satellite 低轨道地球卫星 星链 下行信号 downlink signal 多普勒效应 Doppler effect Starlink |
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| Title | Starlink下行信号的多普勒效应影响分析 |
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