多无人水下航行器协同探测声呐宽带波形设计与性能分析

许彦伟; 薛勐; 刘明刚; 郝程鹏; 赵莉; 王佳欢; 周正春

doi:10.11999/JEIT221265

多无人水下航行器协同探测声呐宽带波形设计与性能分析

doi: 10.11999/JEIT221265

许彦伟^{1, 2},
薛勐^{1, 2},
刘明刚^{1, 2},
郝程鹏^{1, 2, ,},
赵莉^{1, 2},
王佳欢³,
周正春³

1.
中国科学院声学研究所北京 100190
2.
中国科学院大学北京 100049
3.
西南交通大学成都 611756

基金项目: 国家自然科学基金(61971412, 61671443)

详细信息

作者简介:
许彦伟：男，副研究员，研究方向为水声信号处理、深度学习与人工智能等

薛勐：男，硕士生，研究方向为水声信号处理、波形设计、信号检测等

刘明刚：男，研究员，研究方向为水声信号处理、阵列信号处理、信号检测等

郝程鹏：男，研究员，研究方向为水声信号处理、阵列信号处理、信号检测等

赵莉：女，硕士生，研究方向为水声信号处理、深度学习与人工智能等

王佳欢：男，博士生，研究方向为通感一体化波形设计等

周正春：男，博士，教授，研究方向为编码理论、通信/雷达波形设计、电子信息对抗等

通讯作者:
郝程鹏　haochengp@mail.ioa.ac.cn

中图分类号: TN929.3; TN911.6
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- 被引次数: 0
出版历程
- 收稿日期: 2022-09-30
- 修回日期: 2023-01-20
- 网络出版日期: 2023-02-08
- 刊出日期: 2023-10-31

Wideband Waveform Design and Performance Analysis for Multiple Unmanned Underwater Vehicle Cooperative Detection Sonar

XU Yanwei^{1, 2},
XUE Meng^{1, 2},
LIU Minggang^{1, 2},
HAO Chengpeng^{1, 2
, ,},
ZHAO Li^{1, 2},
WANG Jiahuan³,
ZHOU Zhengchun³

1.
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Southwest Jiaotong University, Chengdu 611756, China

Funds: The National Natural Science Foundation of China (61971412, 61671443)

摘要

摘要: 相比于空中的电磁波信号，水下的声波信号传播速度小、频率低，多普勒效应和窄带信号处理方法严重影响多无人水下航行器(multi-UUV)协同探测声呐对运动目标的探测性能。该文基于Costas序列和正交频分线性调频(OFD-LFM)波形，设计了离散频率编码非正交线性调频波形(DFCW-NOFD-LFM)，并将该波形与二进制相移键控(BPSK)、离散频率编码波形(DFCW)等传统码分多址(CDMA)波形进行了性能比较。结果表明，所设计波形具有大多普勒容限、良好的自相关与互相关性能和优秀的抗混响能力，有望应用于多UUV协同探测声呐，以提高其运动目标探测性能。
- 多无人水下航行器 /
- 协同探测 /
- 波形设计 /
- 离散频率编码波形
Abstract: The speed and frequency of underwater sound wave are much lower compared with the electromagnetic wave in the air. The moving target detection performance of multiple Unmanned Underwater Vehicle(multi-UUV) cooperative detection sonar is seriously influenced by the Doppler effect and narrowband signal processing. In this paper, the Discrete Frequency Coding Waveform of Non-Orthogonal Frequency Division Linear Frequency Modulation(DFCW-NOFD-LFM) based on Costas sequence and Orthogonal Frequency Division Linear Frequency Modulation(OFD-LFM) waveform is designed for multi-UUV cooperative detection sonar. The performance comparisons between the designed waveform and the traditional Code Division Multiple Access(CDMA) waveforms such as Binary Phase Shift Keying(BPSK), Discrete Frequency Coding Waveform(DFCW) are carried out. The results show that the designed DFCW-NOFD-LFM has large Doppler tolerance, good performance of auto-correlation, cross-correlation and reverberation suppression. It may be applied to the multi-UUV cooperative detection sonar to improve the relative moving target detection performance.
- Multiple Unmanned Underwater Vehicle (UUV) /
- Cooperative detection /
- Waveform design /
- Discrete Frequency Coding Waveform (DFCW)

HTML全文

图 1 DFCW-OFD-LFM信号的Costas序列调频方式示意图

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图 2 T = 100 ms, B ≤ 5 kHz时各波形宽带模糊函数图和模糊度图

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图 3 T = 100 ms, B ≤ 5 kHz不同多普勒速度时波形脉冲压缩图

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图 4 T = 100 ms, B ≤ 5 kHz时各波形Q函数比较

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表 1 各波形的自相关旁峰与互相关峰(dB)

波形	自相关旁峰ASP	互相关峰CP
BPSK	–15.24	–15.66
DFCW	–0.90	–10.75
DFCW-OFD-LFM	–17.72	–10.89
DFCW-NOFD-LFM	–20.48	–10.92

下载: 导出CSV

表 2 不同多普勒速度时波形的PLSR值与ISLR值(dB)

波形		速度(kn)
波形		–40	–5	0	5	40
PLSR	BPSK	–6.02×10^–4	–5.18×10^–4	–15.24	–6.13×10^–4	–1.27
	DFCW	–0.27	–0.09	–0.90	–0.09	–0.27
	DFCW-OFD-LFM	–0.62	–2.83	–17.72	–2.83	–0.62
	DFCW-NOFD-LFM	–2.02	–13.29	–20.48	–13.29	–2.02
ISLR	BPSK	12.58	10.40	0.16	10.39	12.57
	DFCW	13.36	14.96	8.17	14.96	13.36
	DFCW-OFD-LFM	11.05	3.78	–1.16	3.78	11.05
	DFCW-NOFD-LFM	9.82	4.01	–1.93	4.01	9.82

下载: 导出CSV

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