海洋测绘2024，Vol.44Issue(4)：58-63,6.DOI:10.3969/j.issn.1671-3044.2024.04.013
三种典型水声信号类型检测特性对比分析
Confrontation and analysis of three typical submarine sound signal detect performance
许佳丽 1高飞 1范龙 1李国富 2甘忠良1
作者信息
- 1. 海军研究院,天津 300061
- 2. 国家海洋技术中心,天津 300112
- 折叠
摘要
Abstract
Choosing submarine sound signal is an important step of research at sound propagation loss,to do more at confrontation and analysis of different submarine sound signal detect performance,this article does confrontation and analysis of different submarine sound signal detect performance.This work helps to manufacture and use submarine sound prospecting apparatus.By phantom study and data analysis,this article focuses on detect performance of CW,frequency sweep and pseudo-random coding.During this work,phantom study used Bellhop procedural of ray theory model to count broadband frequency domain sound signal,by fourier transform to be time domain sound signal.Matched filtering,band-pass filtering and short time fourier transform were used to do confrontation and analysis of submarine sound signal detect performance.After this work,we find that frequency sweep and pseudo-random coding had lesser width and side lobe,big margin of signal mountain range,and they could be found multipath conformation.This study help calculation reflected coefficient.关键词
水声信号检测/水声信号类型/匹配滤波/带通滤波/短时傅立叶变换Key words
submarine sound signal detection/submarine sound signal type/matched filtering/band-pass filtering/short time fourier transform分类
天文与地球科学引用本文复制引用
许佳丽,高飞,范龙,李国富,甘忠良..三种典型水声信号类型检测特性对比分析[J].海洋测绘,2024,44(4):58-63,6.
