一种自动多波束线谱检测方法
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- 英文论文题名：The detection of lines in multi-beam lofargram
- 论文作者：董亚飞 ; 姜可宇
- 英文论文作者：DONG Ya-fei ; JIANG Ke-yu ; Navy University of Engineering
- 年：2016
- 作者机构：海军工程大学;
- 论文关键词：多波束 ; 线谱 ; 自动提取
- 英文论文关键词：multi-beam ; lines ; extract automatically
- 会议召开时间：2016-10-28
- 会议录名称：2016年全国声学学术会议论文集
- 语种：中文
- 分类号：U674.70
- 学会代码：OGSM
- 会议名称：2016年全国声学学术会议
- 会议地点：中国湖北武汉
- 主办单位：中国声学学会
- 学会名称：中国声学学会
- 页数：3
- 文件大小：368k
- 原文格式：D
- 会议级别：全国
摘要
论文提出了一种从多波束LOFAR谱图中自动提取线谱的方法,该方法首先利用线谱具有带宽窄且相对连续谱谱级较高的特点筛选出线谱点,然后利用线谱的时间连续性检测一定时间长度的检测窗口内是否存在线谱。对海试数据的处理结果表明该方法能准确提取出人眼所能分辨的线谱。
This article presents a method to extract automatically lines in lofargram, firstly this method takes advantage of the feature that lines are always narrow and have greater amplitude than continuous spectrum to extract the points possibly in lines and then takes advantage of time continuity to detect lines in a window of a certain length. The result to deal with sea trial data indicates that this method can extract accurately lines which can be distinguished by eyes.
This article presents a method to extract automatically lines in lofargram, firstly this method takes advantage of the feature that lines are always narrow and have greater amplitude than continuous spectrum to extract the points possibly in lines and then takes advantage of time continuity to detect lines in a window of a certain length. The result to deal with sea trial data indicates that this method can extract accurately lines which can be distinguished by eyes.
引文
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[2]陈韶华,陈川,赵冬艳.噪声中的线谱检测及自动提取研究[J].应用声学,2009,28(3):220-222.CHEN Shaohua,CHEN Chuan,ZHAO Dongyan.Detection and automatic extraction of tonals buried in noise[J].Applied acoutics,2009,28(3):220-222.
[3]陈敬军,陆佶人,刘淼.基于人工智能的线谱检测技术[J].舰船工程,2004,26(3):68-71.CHEN Jingjun,LU Jiren,LIU Miao.A technique of line spectrum detection based on artificial intelligence[J].Ship engineering,2004,26(3):68-71.
[4]姚振轩,张效民,赵延安,郭思明.基于基频提取的舰船目标识别系统设计[J].鱼雷技术,2011,19(5):356.YAO Zhenxuan,ZHANG Xiaoming,ZHAO Yanan,GUO Siming.Design of warship target recognition system based on fundamental frequency extraction[J].Torpedo technology,2011,19(5):356.
[5]郭建勤,杨日杰,曲晓慧.基于差频与倍频算法的基频的估计[J].微计算机信息,2009,25(6-3):268.GUO Jianqin,YANG Rijie,QU Xiaohui.The estimation for baseband based on difference frequency algorithm and octave algorithm[J].Microcomputer Information,2009,25(6-3):268.