耿森林, 尚志远, 石焕文, 白雅. 基于小波变换的激光超声信号处理[J]. 云南大学学报(自然科学版), 2005, 27(1): 44-46,51.
引用本文: 耿森林, 尚志远, 石焕文, 白雅. 基于小波变换的激光超声信号处理[J]. 云南大学学报(自然科学版), 2005, 27(1): 44-46,51.
shu
GENG Sen-lin, SHANG Zhi-yuan, SHI Huan-wen, BAI Ya. Laser ultrasound signal processing based on Wavelet Transform[J]. Journal of Yunnan University: Natural Sciences Edition, 2005, 27(1): 44-46,51.
Citation: GENG Sen-lin, SHANG Zhi-yuan, SHI Huan-wen, BAI Ya. Laser ultrasound signal processing based on Wavelet Transform[J]. Journal of Yunnan University: Natural Sciences Edition, 2005, 27(1): 44-46,51.
shu

基于小波变换的激光超声信号处理

Laser ultrasound signal processing based on Wavelet Transform

    摘要
  • 摘要: 采用Laser-PVDF实验系统对纳米AlP/SiO2中激光超声信号进行采集.利用小波的多尺度分解、重构和消噪功能,提取出直达波及其反射回波,测量了时间间隔和纳米AlP/SiO2的纵波声速.结果证明小波变换的方法能有效地处理复杂激光超声信号.

     

    Abstract: The laser ultrasound signal in nano AlP/SiO2 is collected with Laser-PVDF experimental system.Making use of the functions of multi-scale decomposing,reconstructing and de-noising of wavelet transform,laser ultrasound signal in nano AlP/SiO2 is processed.The direct longitudinal wave and its reflected echo are extracted,and the sound velocity of nano AlP/SiO2 is measured.The results show that Wavelet Transform is an effective processing method for complex laser ultrasound signal.

     

    • HTML全文
    • 参考文献(0)
    • 相关文章
    • 施引文献
  • 资源附件(0)

/

返回文章
返回