文章摘要
杨振,邹男,付进.Hilbert-Huang变换在瞬态信号检测中的应用[J].声学技术,2015,34(2):167~171
Hilbert-Huang变换在瞬态信号检测中的应用
The application of Hilbert-Huang transform in transient signal detection
投稿时间:2014-03-05  修订日期:2014-07-07
DOI:10.16300/j.cnki.1000-3630.2015.02.013
中文关键词: Hilbert-Huang变换  瞬态信号检测  信号重构  能量检测器
英文关键词: Hilbert-Huang transform  transient signal detection  signal reconstruction  energy detector
基金项目:国家自然科学基金资助项目(51209059,61201411)、国家“863计划”资助项目(2013AA09A503)
作者单位E-mail
杨振 中国人民解放军91388部队, 广东湛江 524022  
邹男 哈尔滨工程大学水声技术重点实验室, 黑龙江哈尔滨 150001
哈尔滨工程大学水声工程学院, 黑龙江哈尔滨 150001 
zounan@hrbeu.edu.cn 
付进 哈尔滨工程大学水声技术重点实验室, 黑龙江哈尔滨 150001
哈尔滨工程大学水声工程学院, 黑龙江哈尔滨 150001 
 
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中文摘要:
      空投物体入水时产生具有时域冲击特性的信号,一般称之为瞬态信号。Hilbert-Huang变换可通过经验模态分解和Hilbert谱分析两种方法,从时频角度对瞬态信号进行分析。介绍了Hilbert-Huang变换的基本原理,建立了瞬态信号的数学模型,提出了基于Hilbert-Huang变换的信号重构瞬态信号检测方法,并与传统能量检测器的性能进行了对比分析,最后通过软件仿真和湖试数据处理验证了该方法的可行性和有效性。
英文摘要:
      When an object airdropped into the water, some signals with impact characteristics in time domain will be generated, which are commonly known as transient signals. Hilbert-Huang Transform could analyze the transient signals in time-frequency domain by empirical mode decomposition and Hilbert spectral analysis. The principle of Hilbert-Huang Transform is introduced, and the mathematic model of transient signal is formed. A new method of transient signal detection based on Hilbert-Huang Transform is proposed, whose performance is analyzed and compared with that of the traditional energy detector. Finally the feasibility and validity of the method are verified by the software simulation and the data processing of lake experiment.
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