时间反转直扩通信系统及性能分析

雷维嘉; 邹梦婷; 雷宏江; 唐宏

doi:10.12263/DZXB.20220351

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时间反转直扩通信系统及性能分析

学术论文 | 更新时间：2026-04-10

- 时间反转直扩通信系统及性能分析
- Time-Reversal DSSS Communication Systems and Performance Analysis
- 电子学报 2024年52卷第1期页码：69-80
- 作者机构：
  
  1.重庆邮电大学通信与信息工程学院，重庆 400065
  2.重庆邮电大学移动通信技术重庆市重点实验室，重庆 400065
- 作者简介：
  
  [ "雷维嘉男，1969年生，云南元谋人.博士.教授.主要研究方向为无线和移动通信技术. E-mail: leiwj@cqupt.edu.cn" ]
  [ "邹梦婷女，1998年生，河南南阳人.硕士研究生.主要研究方向为无线通信. E-mail: 2321760356@qq.com" ]
- 基金信息：
  
  国家自然科学基金(61971080)
- DOI：10.12263/DZXB.20220351
  中图分类号： TN918;
- 收稿：2022-04-06，
  
  修回：2022-10-13，
  
  纸质出版：2024-01-25
- 稿件说明：
移动端阅览
雷维嘉,邹梦婷,雷宏江等.时间反转直扩通信系统及性能分析[J].电子学报,2024,52(01):69-80.

LEI Wei-jia,ZOU Meng-ting,LEI Hong-jiang,et al.Time-Reversal DSSS Communication Systems and Performance Analysis[J].ACTA ELECTRONICA SINICA,2024,52(01):69-80.
雷维嘉,邹梦婷,雷宏江等.时间反转直扩通信系统及性能分析[J].电子学报,2024,52(01):69-80. DOI： 10.12263/DZXB.20220351.

LEI Wei-jia,ZOU Meng-ting,LEI Hong-jiang,et al.Time-Reversal DSSS Communication Systems and Performance Analysis[J].ACTA ELECTRONICA SINICA,2024,52(01):69-80. DOI： 10.12263/DZXB.20220351.

摘要

时间反转传输技术的空时聚焦特性能够有效地提升通信系统的性能.本文设计了一种将时间反转技术应用于直扩通信系统的方案，并对多径衰落信道下单用户和多用户系统的接收信干噪比、系统容量、误比特率等性能进行了理论分析与仿真验证.理论与仿真结果表明，通过时间反转预处理，直扩通信系统的性能得到了改善，且优于复杂度较高的多通道Rake接收的系统，且多径数目越多，优势越明显.

Abstract

The space-time focusing characteristics of the time-reversal transmission technology can effectively improve the performance of the communication system. This paper designs a scheme that applies the time-reversal technology to the direct-spread-spread-spectrum (DSSS) communication system. The performance of the system

such as receiving signal-to-interference-noise ratio

system capacity

and bit error rate

is analyzed theoretically and verified by simulation. Theoretical and simulation results show that the performance of the DSSS communication system has been significantly improved through time-reversal preprocessing

and it is better than the system using multi-channel Rake receiver with high complexity

and the more the number of multi-paths

the more obvious the advantage.

关键词

Keywords

references

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