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一种抑制相位噪声的多通道变时延下变频全双工收发方法

全欣 刘颖 范平志 唐友喜

全欣, 刘颖, 范平志, 唐友喜. 一种抑制相位噪声的多通道变时延下变频全双工收发方法[J]. 电子与信息学报, 2023, 45(5): 1627-1634. doi: 10.11999/JEIT220464
引用本文: 全欣, 刘颖, 范平志, 唐友喜. 一种抑制相位噪声的多通道变时延下变频全双工收发方法[J]. 电子与信息学报, 2023, 45(5): 1627-1634. doi: 10.11999/JEIT220464
QUAN Xin, LIU Ying, FAN Pingzhi, TANG Youxi. A Multiple-downconversion Full-Duplex Transceiver Receiver Design for Phase Noise Suppression[J]. Journal of Electronics & Information Technology, 2023, 45(5): 1627-1634. doi: 10.11999/JEIT220464
Citation: QUAN Xin, LIU Ying, FAN Pingzhi, TANG Youxi. A Multiple-downconversion Full-Duplex Transceiver Receiver Design for Phase Noise Suppression[J]. Journal of Electronics & Information Technology, 2023, 45(5): 1627-1634. doi: 10.11999/JEIT220464

一种抑制相位噪声的多通道变时延下变频全双工收发方法

doi: 10.11999/JEIT220464
基金项目: 国家自然科学基金(61901396, 62071094, 62020106001),四川省自然科学基金(2022NSFSC0879, 2022NSFSC0910),高等学校学科创新引智计划 (111-2-14)
详细信息
    作者简介:

    全欣:女,助理研究员,研究方向为全双工通信、自干扰抑制、相位噪声抑制、非线性校正

    刘颖:男,副教授,研究方向为非线性数字信号处理、全双工通信、无线通信信号处理

    范平志:男,教授,研究方向为高移动性宽带无线通信、信号设计与处理、信息理论与编码、无线频谱资源管理

    唐友喜:男,教授,研究方向为无线通信系统、抗干扰与安全通信系统、机器学习与人工智能

    通讯作者:

    全欣 15881069748@139.com

  • 中图分类号: TN92

A Multiple-downconversion Full-Duplex Transceiver Receiver Design for Phase Noise Suppression

Funds: The National Natural Science Foundation of China (61901396, 62071094, 62020106001), The Natural Science Foundation of Sichuan Province (2022NSFSC0879, 2022NSFSC0910), The Program of Introducing Talents of Discipline to Universities (111-2-14)
  • 摘要: 相位噪声会限制全双工(FD)收发机的自干扰抑制能力,恶化有用信号解调性能,即使全双工收发机采用发射机、接收机共用本振的结构,也无法消除相位噪声的限制作用。为了降低多径自干扰(SI)分量中相位噪声的影响,该文提出一种多通道变时延下变频全双工收发方法,具体包括可以补偿相位噪声的全双工收发机设计和能够抑制残余相位噪声的自干扰抑制算法。多通道变时延下变频全双工收发机采用多条通道接收同一天线的信号,各接收本振信号为经过不同延时调整的发射本振信号,可以在下变频时补偿多径自干扰中的相位噪声。自干扰抑制算法利用不同接收信号估计相位噪声参数,进一步降低残余相位噪声的影响。此外,该文推导了这种全双工收发方法的自干扰抑制能力,并给出了其随发射功率、接收通道数量的变化关系。分析与仿真结果表明,当接收通道数量高于自干扰信道强径数量时,多通道变时延下变频全双工接收方法不受相位噪声影响。
  • 图  1  多通道变时延下变频全双工收发机

    图  2  多通道变时延下变频接收机在不同相位噪声条件下的自干扰抑制能力

    图  3  多通道变时延下变频接收机在不同信道条件下的自干扰抑制能力

    表  1  自干扰信道参数设置(dB)

    多径延时(采样点)
    0358
    信道1功率0–30–35–40
    信道2功率0–5–35–40
    信道3功率0–5–8–40
    信道4功率0–5–8–10
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-04-18
  • 修回日期:  2022-08-03
  • 网络出版日期:  2022-08-08
  • 刊出日期:  2023-05-10

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