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改进的Gold码并行组合扩频水声通信

李燕 贾宁 黄建纯 刘彪 郭圣明

李燕, 贾宁, 黄建纯, 刘彪, 郭圣明. 改进的Gold码并行组合扩频水声通信[J]. 电子与信息学报, 2022, 44(6): 1937-1946. doi: 10.11999/JEIT211447
引用本文: 李燕, 贾宁, 黄建纯, 刘彪, 郭圣明. 改进的Gold码并行组合扩频水声通信[J]. 电子与信息学报, 2022, 44(6): 1937-1946. doi: 10.11999/JEIT211447
LI Yan, JIA Ning, HUANG Jianchun, LIU Biao, GUO Shengming. Improved Parallel Combinatory Spread Spectrum Underwater Acoustic Communication Based on Gold Codes[J]. Journal of Electronics & Information Technology, 2022, 44(6): 1937-1946. doi: 10.11999/JEIT211447
Citation: LI Yan, JIA Ning, HUANG Jianchun, LIU Biao, GUO Shengming. Improved Parallel Combinatory Spread Spectrum Underwater Acoustic Communication Based on Gold Codes[J]. Journal of Electronics & Information Technology, 2022, 44(6): 1937-1946. doi: 10.11999/JEIT211447

改进的Gold码并行组合扩频水声通信

doi: 10.11999/JEIT211447
基金项目: 中国科学院青年创新促进会基金(2018028, 2019025)
详细信息
    作者简介:

    李燕:女,1991年生,博士生,研究方向为扩频水声通信

    贾宁:男,1982年生,硕士生导师,研究方向为水声通信、水声信号处理等

    黄建纯:男,1983年生,博士生,研究方向为水声通信、水声网络通信等

    刘彪:男,1994年生,博士生,研究方向为水声信道、水声通信等

    郭圣明:男,1969年生,博士生导师,研究方向为水声物理、声场信号处理等

    通讯作者:

    贾宁 jianing@mail.ioa.ac.cn

  • 中图分类号: TN929.3

Improved Parallel Combinatory Spread Spectrum Underwater Acoustic Communication Based on Gold Codes

Funds: Youth Innovation Promotion Association of Chinese Academy of Sciences (2018028, 2019025)
  • 摘要: 将映射序列扩频(MSSS)方法用于并行组合扩频(PCSS)水声(UWA)通信,有效降低通信信号峰均比,进而提高通信性能。但当使用Gold码作为扩频码时,由于Gold码的循环移位相加特性,导致映射信号在接收端解相关时会出现伪峰,严重降低通信系统的性能。为了减小伪峰对通信性能的影响,该文提出基于相关峰相位差法的并行组合扩频(PDCP-PCSS)和交织并行组合扩频(IPCSS)两种方法。PDCP-PCSS方法在接收端加入相关峰相位差法对伪峰进行识别和剔除,有效降低了伪峰对通信性能的影响。IPCSS方法将交织技术与并行组合扩频相结合,避免了伪峰的生成。通过仿真和海上试验验证,这两种方法相比于传统的并行组合扩频水声通信(CPCSS)方法具有更好的通信性能,PDCP-PCSS方法的通信性能最优,但适用范围仅限于3个Gold码的组合,而IPCSS方法的适用范围更广。
  • 图  1  传统的并行组合扩频水声通信方法原理框图

    图  2  3个Gold码组合叠加后的多值序列

    图  3  采用映射序列扩频方法前后发射信号图

    图  4  各个相关器输出解相关的最大值

    图  5  PDCP-PCSS方法原理框图

    图  6  IPCSS方法原理框图

    图  7  3个解交织器的输出信号解相关值

    图  8  SSP

    图  9  信道冲激响应

    图  10  3种通信系统误码率曲线

    图  11  试验设备布放示意图

    图  12  海试SSP

    图  13  发射信号的帧结构

    图  14  3号水听器解相关输出的扩频码号数

    图  15  9号水听器解相关输出的扩频码号数

    表  1  系统仿真主要参数

    参数取值
    扩频码集9阶Gold码
    调制方式QPSK
    带宽(kHz)4
    载波频率(kHz)6
    噪声功率(dBW)4~16
    通信速率(bps)94
    下载: 导出CSV

    表  2  3种通信方法在不同水听器下的误比特数

    水听器编号CPCSSPDCP-PCSSIPCSS
    1号000
    2号000
    3号300
    4号300
    5号009
    6号000
    7号000
    8号2900
    9号2002
    10号2100
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-12-06
  • 修回日期:  2022-02-25
  • 录用日期:  2022-03-03
  • 网络出版日期:  2022-03-16
  • 刊出日期:  2022-06-21

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