[1]王大宇,王志欣,张光普.基于改进谱减算法的水声通信信号检测方法[J].应用科技,2020,47(3):69-73.[doi:10.11991/yykj.202005006]
 WANG Dayu,WANG Zhixin,ZHANG Guangpu.Detection method of underwater acoustic communications signal based on improved spectral subtraction algorithm[J].Applied science and technology,2020,47(3):69-73.[doi:10.11991/yykj.202005006]
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基于改进谱减算法的水声通信信号检测方法(/HTML)
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第47卷
期数:
2020年3期
页码:
69-73
栏目:
水声工程
出版日期:
2020-07-05

文章信息/Info

Title:
Detection method of underwater acoustic communications signal based on improved spectral subtraction algorithm
作者:
王大宇1 王志欣1 张光普2
1. 中国电子科技集团公司 第五十四研究所,河北 石家庄 050081;
2. 哈尔滨工程大学 水声工程学院,黑龙江 哈尔滨 150001
Author(s):
WANG Dayu1 WANG Zhixin1 ZHANG Guangpu2
1. The 54th Research Institute of CETC, Shijiazhuang 050081, China;
2. College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
水声通信信号检测降噪谱减双滑窗多窗谱水声信道海洋环境噪声
Keywords:
underwater acoustic communicationssignal detectionnoise reductionspectral subtractiondouble sliding windowmultitaper spectrumunderwater acoustic channelmarine ambient noise
分类号:
TN911.7
DOI:
10.11991/yykj.202005006
文献标志码:
A
摘要:
针对水声信道环境噪声干扰严重,信号接收信噪比低,导致水声通信信号检测困难的问题,本文在传统双滑窗检测的基础上,提出基于改进谱减算法与双滑窗检测相结合的水声通信信号检测方法。借鉴语音信号增强思想,将接收的水声通信信号进行谱减降噪处理,提高信号接收信噪比;结合双滑窗检测技术,实现负信噪比下水声通信信号的检测。仿真结果表明,在接收信噪比为?10 dB的情况下,仍可实现水声通信信号的正确检测。
Abstract:
In view of the problem that the environment noise interference of underwater acoustic channel is serious and the signal-to-noise ratio of signal reception is low, which leads to the difficulty of signal detection in underwater acoustic communications. On the basis of double sliding window detection, an underwater acoustic signal detection method based on the combination of improved spectrum subtraction algorithm and double sliding window detection is proposed. Using the idea of speech signal enhancement for reference, the received underwater acoustic communications signal is processed by spectrum subtraction and noise reduction to improve the received signal-to-noise ratio. Combined with double sliding window detection technology, the detection of underwater acoustic communications signal with negative signal-to-noise ratio is realized. The simulation results show that the correct detection of underwater acoustic communications signal can still be realized when the received signal-to-noise ratio is ?10 dB.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-05-08。
基金项目:国家自然科学基金企业创新发展联合基金项目(U19B2028);国家重点研发计划项目(2017YFC0306900)
作者简介:王大宇,男,高级工程师,博士;王志欣,男,工程师
通讯作者:王志欣,E-mail:wangzx_1221@163.com
更新日期/Last Update: 2020-08-05