Feature extraction on power increase rate of ship radiated noise tempo

GAO Xin; WANG Yi-chuan

doi:10.13873/j.1000-97872011.06.001

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Feature extraction on power increase rate of ship radiated noise tempo

更新时间：2025-09-11

- Feature extraction on power increase rate of ship radiated noise tempo
- Vol. 30, Issue 6, Pages: 8-10(2011)
- 作者机构：
  
  海军潜艇学院航海观通系
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872011.06.001
  CLC： TB533.2
- Published：2011
- 稿件说明：
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[1]高鑫,王易川.舰船辐射噪声节拍功率增率特征提取[J].传感器与微系统,2011,30(06):8-10.

GAO Xin, WANG Yi-chuan. Feature extraction on power increase rate of ship radiated noise tempo[J]. 2011, 30(6): 8-10.
[1]高鑫,王易川.舰船辐射噪声节拍功率增率特征提取[J].传感器与微系统,2011,30(06):8-10. DOI： 10.13873/j.1000-97872011.06.001.

GAO Xin, WANG Yi-chuan. Feature extraction on power increase rate of ship radiated noise tempo[J]. 2011, 30(6): 8-10. DOI： 10.13873/j.1000-97872011.06.001.

摘要

舰船辐射噪声节拍的音色特征是水下目标识别的重要依据

其与节拍能量的变化相关。首先采用短时傅立叶变换对舰船辐射噪声进行时频分析

然后根据时频能量分布图

分别计算节拍能量最强和最弱处累积功率谱

功率增大率反映了节拍的音色特征

是舰船辐射噪声的重要特征。通过实验证明:与以往的功率谱特征相比

节拍功率增率特征和功率谱特征联合识别能有效的提高识别率。

Abstract

Timbre feature of ship radiated noise tempo is important basis of underwater target classification.It is related to the energy change of tempo.Ship radiated noise is analyzed by short time Fourier transform.According to time-frequency energy distribution spectrum

power spectrum of strongest and weakest tempo energy are calculated.Power increase rate reflects the timbre feature of tempo

so it is an important feature of ship radiated noise.It has been proved by experiment that the recognition rate is increased by combination of power spectrum feature and power increase rate feature

compared with traditional power spectrum feature.

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references

舰船辐射噪声节拍音色特征研究 [J]. 刘鹏,刘孟庵. 声学与电子工程 . 2007(02)

舰船噪声调制谱谐波族结构特性理论分析 [J]. 史广智,胡均川. 声学学报(中文版) . 2007(01)

基于DEMON线谱的轴频提取方法研究 [J]. 殷敬伟,惠俊英,姚直象,杨春. 应用声学 . 2005(06)

短时能量分析及人耳的主观听觉在船舶辐射噪声特征提取中的研究 [J]. 阳雄,程玉胜. 声学技术 . 2004(01)

舰船噪声识别（Ⅲ）──双重谱和平均功率谱的特征提取和模板图 [J]. 吴国清,李靖,李训诰,陈耀明,袁毅. 声学学报 . 1999(02)

舰船噪声节奏的研究（Ⅱ）——自相关函数及节奏信息的提取 [J]. 陶笃纯. 声学学报 . 1983(05)

舰船噪声节奏的研究（Ⅰ）——数学模型及功率谱密度 [J]. 陶笃纯. 声学学报 . 1983(02)

按辐射噪声平均功率谱形状识别船舶目标 [J]. 陶笃纯. 声学学报 . 1981(04)

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