中国科学院机构知识库网格系统: AE signal processing and DSP implementation based on wavelet packet analysis (EI CONFERENCE)

中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

AE signal processing and DSP implementation based on wavelet packet analysis (EI CONFERENCE)

文献类型：会议论文


作者	Zhao J.; Wang K.
出版日期	2005
会议名称	ICMIT 2005: Information Systems and Signal Processing, September 20, 2005 - September 23, 2005
会议地点	Changchun, China
关键词	To improve the accuracy of AE (Acoustic Emission) testing the wavelet packet analysis was introduced to process the AE signals. Extraction of the fault characteristic information would be influenced greatly if the faulted AE signal was not effectively denoised. Based on discussing the fast searching algorithm of BWPB (Best Wavelet Packet Basis) adopting Shannon entropy a new method based on BWPB was presented to denoise the AE signal from the faulted composite plate. Analyzing was performed on the denoised signal and the fault characteristic information was exacted. To improve the real-time performance of the wavelet packet analysis algorithm it was performed on the DSP (Digital Signal Processing) chip TMS320VC5409. The experimental results show that the algorithm can not only reduce the noise by 10dB but also effectively extract the faulted characteristics information from the AE signal.
收录类别	EI
源URL	[http://ir.ciomp.ac.cn/handle/181722/33796]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式 GB/T 7714	Zhao J.,Wang K.. AE signal processing and DSP implementation based on wavelet packet analysis (EI CONFERENCE)[C]. 见:ICMIT 2005: Information Systems and Signal Processing, September 20, 2005 - September 23, 2005. Changchun, China.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

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