| 水听器阵共模干扰抵消研究 |
| |
| 引用本文： | 田彪,黄海宁,李宇.水听器阵共模干扰抵消研究[J].应用声学,2010,29(4):287-292. |
| |
| 作者姓名： | 田彪 黄海宁 李宇 |
| |
| 作者单位： | 1. 中国科学院声学研究所,北京,100190;中国科学院研究生院,北京,100190
2. 中国科学院声学研究所,北京,100190 |
| |
| 基金项目： | 国家自然科学基金，中国科学院知识创新工程青年人才领域前沿项目 |
| |
| 摘 要： | 硬件电路设计不当等原因将会导致水听器前放电路中存在共模干扰,水听器阵共模干扰将会"污染"A/D采样信号,从而对声纳目标探测与跟踪及其他后续处理造成困扰。在实际的声纳系统中,最好是采用硬件预处理的方式避免共模干扰,但对于已经被污染了的采集数据而言,则只能通过干扰抵消等信号处理的方式对被"污染"了的原始数据加以修复或还原。本文对水听器阵共模干扰特性进行了详细分析,并根据其干扰特性,提出了基于错位相减技术和基于独立分量分析的两种干扰抵消方法。湖试数据处理结果验证了本文方法的可行性。
|
| 关 键 词： | 水听器阵 干扰抵消 盲源分离 独立分量分析 错位相减 |
Cancellation of common mode interference in hydrophone array |
| |
| TIAN Biao,HUANG Hai-Ning and LI Yu.Cancellation of common mode interference in hydrophone array[J].Applied Acoustics,2010,29(4):287-292. |
| |
| Authors: | TIAN Biao HUANG Hai-Ning and LI Yu |
| |
| Institution: | 1(1 Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190)(2 Graduate University of Chinese Academy of Sciences,Beijing 100190) |
| |
| Abstract: | The common mode interference existing in hydrophone array due to the improper circuit design will contaminate the acquisition A/D data and lead to poor performance of sonar signal processing.The properties of common mode interference are analyzed,and two interference cancelling methods,based on the transplacement subtraction technique and the independent component analysis(ICA) respectively,are proposed to recover the contaminated acquisition data.The validity of the proposed methods is verified by beamforming of lake-trial data. |
| |
| Keywords: | Hydrophone array Interference cancelling Blind source separation(BSS) Independent component analysis(ICA) Transplacement subtraction |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《应用声学》浏览原始摘要信息 |
| 点击此处可从《应用声学》下载免费的PDF全文 |
|
