| 彭海源,李宇,普湛清,王巍.扫扩载波-直接序列扩频的深海水声通信方法*[J].,2024,43(6):1272-1282 |
| 扫扩载波-直接序列扩频的深海水声通信方法* |
| Deep sea underwater acoustic communication method based on sweep spread carrier-direct sequence spread spectrum |
| 投稿时间：2023-08-02 修订日期：2024-10-30 |
| 中文摘要: |
| 针对深海水声信道长多径时延条件下，常规直接序列扩频（direct sequence spread spectrum, DSSS）水声通信系统扩频增益不足以抵抗多径干扰从而引起性能下降的问题，本文结合扫扩载波（sweep spread carrier, S2C）技术，提出一种应用于深海水声通信的扫扩载波-直接序列扩频（S2C-DSSS）通信方法,并在深海实测信道下进行了仿真。结果显示，相较于常规DSSS系统，本文提出的S2C-DSSS系统仿真误比特率可下降1到3个数量级。结果证明，S2C-DSSS系统具有较好的抗多径性能，适用于深海水声信道。 |
| 英文摘要: |
| Aiming at the problem that the spread spectrum gain of conventional direct sequence spread spectrum (DSSS) underwater acoustic communication system is insufficient to resist multipath interference under the condition of long multipath delay in deep sea underwater acoustic channel, combining sweep spread carrier (S2C) technology, this paper presents a sweep spread carrier-direct sequence spread spectrum (S2C-DSSS) communication method for deep sea underwater acoustic communication. The simulation is carried out in the actual measured deep-sea channel. The results show that, compared to the conventional DSSS system, the simulation bit error rate of the S2C-DSSS system proposed in this paper can be reduced by 1 to 3 orders of magnitude. The results prove that the S2C-DSSS system has good anti-multipath performance and is suitable for deep-sea acoustic channels. |
| DOI：10.11684/j.issn.1000-310X.2024.06.010 |
| 中文关键词: 深海水声通信 长多径时延 直接序列扩频 扫扩载波 |
| 英文关键词: Deep sea underwater acoustic communication Long multipath time-delay Direct sequence spread spectrum Sweep spread carrier |
| 基金项目:中国科学院重点实验室基金 |
|
| 摘要点击次数: 39 |
| 全文下载次数: 27 |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
