[1]李秀坤,夏峙,王向红,等.混响背景下水底目标回波盲分离[J].哈尔滨工程大学学报,2015,(01):62-67.[doi:10.3969/j.issn.1006-7043.201310034]
 LI Xiukun,XIA Zhi,WANG Xianghong,et al.Blind separation of underwater target echoes in reverberation background[J].Journal of Harbin Engineering University,2015,(01):62-67.[doi:10.3969/j.issn.1006-7043.201310034]
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混响背景下水底目标回波盲分离
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2015年01期
页码:
62-67
栏目:
出版日期:
2015-01-25

文章信息/Info

Title:
Blind separation of underwater target echoes in reverberation background
作者:
李秀坤12 夏峙12 王向红12 牟林3
1. 哈尔滨工程大学 水声技术重点实验室, 黑龙江 哈尔滨 150001;
2. 哈尔滨工程大学 水声工程学院, 黑龙江 哈尔滨 150001;
3. 中国船舶重工集团公司第760研究所, 辽宁 大连 116013
Author(s):
LI Xiukun12 XIA Zhi12 WANG Xianghong12 MU Lin3
1. Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China;
2. College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China;
3. The 760th Research Institute of China Shipbuilding Industry Corporation, Dalian 116013, China
关键词:
水声探测掩埋目标混响信号混叠可分离性信号分离盲源分离
分类号:
TN911.7
DOI:
10.3969/j.issn.1006-7043.201310034
文献标志码:
A
摘要:
针对水下掩埋目标探测中目标回波信混比较低的问题,提出将混响视为一类信源的与目标回波盲分离方法,研究了目标回波与混响在时域统计特性、时频域以及时域波形上的可分离性与分离原则问题,解决了传统时频方法不适用于当混响与目标回波在时频域内混叠时的抑制混响问题。海上掩埋目标探测实验数据处理结果表明,经过时域二阶统计盲分离与时频域盲分离处理后,目标回波的信混比提高了约5 dB,在时频分布上可以更清楚的观察到目标几何亮点,从而提高对目标回波识别的准确性。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-10-15;改回日期:。
基金项目:国家自然科学基金资助项目(51279033).
作者简介:李秀坤(1962-),女,教授,博士生导师.
通讯作者:李秀坤,E-mail:lixiukun@hrbeu.edu.cn.
更新日期/Last Update: 2015-06-16