Analysis and Processing of Penetration Acceleration Signal from Test base on Wavelet Analysis

摘要：

The frequency components of projectiles penetration acceleration signal from the test of penetration are very abundant, and rapidly change with time, so penetration acceleration signal is a kind of typical Nonstationary Random Signal (NRS). Wavelet analysis is an effective time-frequency analysis method, it has multi-resolution analysis characteristic, especially fits for the analysis and processing of nonstationary random signal. This paper uses Matlabs wavelet analysis tools to decompose the penetration test signal in different frequency ranges and reduce the noise of signal. The final analysis results show that, wavelet analysis is a useful and effective analysis tool for penetration acceleration signal, and it is significant for engineering design and practice.

关键词： penetration test acceleration signal nonstationary random signal wavelet analysis time-frequency analysis

作者: LI Ming LIU Mingjie

作者单位: School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, China, 100081

会议类型: 国际会议

会议名称: 第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)

会议地点: 重庆

会议语种:英文

页码: 1-4

在线出版日期: 2009-08-01（万方平台首次上网日期，不代表论文的发表时间）