Pulse Compression in Ultrasonic Testing
The effect of the pulse compression in ultrasonic testing is restricted by the bandwidth of transducer. This paper presents a deconvolution method to obtain an excitation signal which can make the ultrasonic testing system output the linear frequency modulated (LFM) test signal with a large time-bandwidth product. Effective compression signals with high resolution and low sidelobes are achieved in both simulation analysis and experiment. The influence of transducers bandwidth on the pulse compression ratio and the comparison with LFM exciting method is also discussed.
Han Zhang Mingxuan Li Jie Mao Xiaomin Wang
Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,P.R.China
国际会议
The 10th Western Pacific Acoustics Conference(第十届西太平洋声学会议WESPAC X)
北京
英文
1-7
2009-09-21（万方平台首次上网日期，不代表论文的发表时间）