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冲击声的固有结构建模及目标识别
引用本文:梁 雍,陈克安,张冰瑞,等.冲击声的固有结构建模及目标识别[J].噪声与振动控制,2014,34(1):150-154.
作者姓名:梁 雍  陈克安  张冰瑞  
作者单位:( 西北工业大学 航海学院 环境工程系, 西安 710072 )
基金项目:国家自然科学基金资助课题(基金号:11074202)
摘    要:将统计数据驱动方法应用于冲击声的固有结构建模,研究了单个冲击信号及冲击声组的时域和频域特征提取方法,并将所提特征用于圆柱壳冲击声和公路空洞检测冲击声分类,获得了良好效果,证实了该方法用于冲击声目标分类的有效程度。

关 键 词:振动与波    数据驱动    冲击声    固有结构建模    特征提取    目标分类  
收稿时间:2013-03-11

Intrinsic Structure Modeling and Target Recognition for Impact Sounds
LIANG Yong,CHEN Ke-an,ZHANG Bing-rui,YANG Li-xue.Intrinsic Structure Modeling and Target Recognition for Impact Sounds[J].Noise and Vibration Control,2014,34(1):150-154.
Authors:LIANG Yong  CHEN Ke-an  ZHANG Bing-rui  YANG Li-xue
Affiliation:( School of Marine Engineering, Northwestern Polytechnical University, Xi’an 710072, China )
Abstract:The statistical data-driven method is used to model the intrinsic structures of impact sounds. The method forextraction of essential features in time and frequency domains of single impact sound and ensembles of similar impactsounds are studied based on the temporal and spectral base functions. Using this method, the temporal and spectral featuresof sounds from an impacted cylinder hull and road cavity examination are extracted and then classified by an RBF-basedclassifier. It is shown that such a feature extraction method can achieve good classification performances for both types ofsounds.
Keywords:vibration and wave  statistical data-driven method  impact sounds  intrinsic structure modeling  featureextraction  target classification
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