• 学术论文 •

### 水声通信中极化码的应用研究

1. 西安电子科技大学综合业务网国家重点实验室, 陕西 西安 710071
• 收稿日期:2021-03-07 修回日期:2021-12-16 出版日期:2022-09-25
• 通讯作者:
• 李卓
• 作者简介:
• 邢莉娟 女， 1982年出生， 陕西西安人， 博士， 西安电子科技大学副教授， 主要研究方向为量子信息论、 信道编码与调制技术.E-mail: ljxing@mail.xidian.edu.cn
李 卓 男， 1980年出生， 陕西西安人， 博士， 西安电子科技大学教授， 主要研究方向为量子计算、 量子信息论、 5G中的编码调制技术.E-mail: lizhuo@xidian.edu.cn
• 基金资助:
• 国家自然科学基金 (61372072); 111工程基金资助项目 (B08038); 中央高校基本科研业务费专项资金资助项目

### Research on the Application of Polar Codes in Underwater Acoustic Communication

XING Li-juan, LI Zhuo, ZHANG Ze-dong

1. State Key Laboratory of Integrated Service Networks，Xidian University，Xi’an，Shaanxi 710071，China
• Received:2021-03-07 Revised:2021-12-16 Online:2022-09-25 Published:2022-10-26
• Corresponding author:
• LI Zhuo

Abstract:

Aiming at the characteristics of the underwater acoustic channel such as complex and changeable, strong multi-path and large fluctuation interference, this paper establishes an underwater acoustic communication system with polar code as the channel coding scheme to improve the reliability of underwater acoustic data transmission. Aiming at the channel with invariable sound velocity gradient(ISVG), negative sound velocity gradient(NSVG) and positive sound velocity gradient(PSVG), a Monte Carlo construction is proposed as a construction scheme of polar code. Performance simulations on each channel show that the polar code construction scheme proposed in this paper is feasible and effective under three channels. Compared with the low density parity check code(LDPC) with similar code length, the comprehensive performance of the polar code is better under the same signal-to-noise ratio(SNR). Relatively speaking, when the SNR of the polarization code is improved, its bit error rate curve drops faster, which means that it can obtain a higher coding gain. The simulation results improve the performance of the underwater acoustic communication system, and show a good application prospect in the complicated underwater acoustic channel.