Sparsity-driven adaptive enhancement of underwater acoustic tonals for passive sonars
文献类型：期刊论文
| 作者 | Hao Y(郝宇); Chi C(迟骋); Liang GL(梁国龙) |
| 刊名 | JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
 |
| 出版日期 | 2020 |
| 期号 | 4页码:2192 |
| ISSN号 | 0001-4966 |
| DOI | 10.1121/10.0001017 |
| 英文摘要 | Acoustic tonals, radiated by underwater and surface vehicles, are an important feature for passive sonar detection. An adaptive line enhancer (ALE) is usually employed in passive sonar systems as a preprocessing step to enhance the acoustic tonals from these vehicles. Unfortunately, the performance of the conventional ALE is limited by the high steady-state misadjustment, which is caused by the weight noise in the adaptation process. This paper makes use of the frequency-domain sparsity of these tonals to develop better ALEs for passive sonars. The adaptation of the proposed ALE is performed in the frequency domain. Three typical sparse penalties, l1-norm, log-sum, and l0-pseudo-norm, are incorporated into the cost function of the frequency-domain adaptation, which yield three sparsity-driven ALEs: zero-attracting (ZA), reweighted zero-attracting (RZA), and l0. The simulation shows that the signal-to-noise ratio gains of the ZA-ALE, RZA-ALE, and l0-ALE are 5.9, 8.7, and 9.7 dB, higher than that of the conventional ALE, respectively. The results of processing the real data also validate that all the sparsity-driven ALEs outperform the conventional ALE, and the l0-ALE performs the best. The proposed sparsity-driven l0-ALE is thus a promising candidate for passive sonars to enhance the tonals. |
| URL标识 | 查看原文 |
| 源URL | [http://159.226.59.140/handle/311008/9590]  |
| 专题 | 历年期刊论文_2020年期刊论文 |
| 作者单位 | 中国科学院声学研究所 |
| 推荐引用方式 GB/T 7714 | 郝宇；迟骋；梁国龙. Sparsity-driven adaptive enhancement of underwater acoustic tonals for passive sonars[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2020(4):2192. |
| APA | 郝宇；迟骋；梁国龙.(2020).Sparsity-driven adaptive enhancement of underwater acoustic tonals for passive sonars.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA(4),2192. |
| MLA | 郝宇；迟骋；梁国龙."Sparsity-driven adaptive enhancement of underwater acoustic tonals for passive sonars".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA .4(2020):2192. |
入库方式： OAI收割
来源：声学研究所
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