文章摘要
陈敬军,陆佶人.被动声纳线谱检测技术综述[J].声学技术,2004,(1):57~60
被动声纳线谱检测技术综述
A review of techniques for detection of line-spectrum in passive sonar
投稿时间:2003-10-08  修订日期:2003-12-25
DOI:
中文关键词: 线谱检测  谱线提取  LOFAR图  被动声纳
英文关键词: line-spectrum detection  spectral lines extraction  lofargram  passive sonar
基金项目:
作者单位
陈敬军 东南大学无线电工程系, 南京, 210096
上海船舶电子设备研究所代表室, 上海, 200025 
陆佶人 东南大学无线电工程系, 南京, 210096 
摘要点击次数: 1382
全文下载次数: 1270
中文摘要:
      船舶辐射噪声的功率谱由连续的宽带谱和离散窄带线谱组成。在被动声纳系统中,线谱检测是一个至关重要的问题。本文对线谱检测技术进行了综述。该领域最新进展表明,为了能够在低信噪比下检测和提取线谱,往往采用两种或多种组合方法,并且利用了多个时刻的数据。
英文摘要:
      The spectrum of radiated noise from ships consists of a continuous broadband spectrum and a discrete narrow-band line-spectrum. A crucial issue in a passive sonar system is detection of the spectral lines. A review of techniques for detection of spectral lines is given in this paper. Recent developments in this field show that, in order to detect spectral lines at a very low signal to noise ratio, combination of more than one method is usually adopted, and multiple frame spectra are used.
查看全文   查看/发表评论  下载PDF阅读器
关闭