[1] Silk M G. Defect sizing using ultrasonic diffraction.British Journal of NDT, 1979, 21 (1):12-15.
[2] Guide to Calibration and setting up of the ultrasonic time of TOFD technique. British Standard BS7706, 1993.
[3] 郑晖,胡斌,林树青,等. 国外TOFD检测标准分析和比较.无损检测,2007.29(3):150-154.
[4] Manjula K, Vijayarekha K, Venkatrarnan B,et al. Ultrasonic time of flight diffraction technique for weld defects: a review. Research Journal of Applied Sciences, Engineering and Technology, 2012: 4(24): 5525-5533
[5] Chi D Z, Gang T. Shallow buried defect testing method based on ultrasonic TOFD.Nondestruct Eval, 2013.32: 164-171.
[6] 迟大钊,刚铁,姚英学,等.一种基于超声TOFD法的近表面缺陷检测模式.焊接学报,2011.32(2): 25-28.
[7] Nobukazu I , Hiroaki H, Arakawa T,et al.Examination of flaw detection near the surface by the ultrasonic TOFD method.Key Engineering Material,2004.270:378-383.
[8] Baskaran G, Balasubramaniam K, Rao C L, et al. Shear-wave time of flight diffraction (S-TOFD) technique.NDE&T International,2006,39:458-467.
[9] Baskaran G, Lakshmana Rao C, Balasubramaniam K. Simulation of the TOFD technique using the finite element method.Insight, 2007.49(11): 641-646.
[10] Baskaran G. Application of TOFD technique to thin sections using ESIT and PSCT . Nondestructive Evaluation, 2005.24: 813-819.
[11] Baskaran G, Balasubramaniam K, Krishnamurthy C V, et al. Ultrasonic TOFD flaw sizing and imaging in thin plates using Embedded Signal Identification Technique (ESIT).Insight, 2004,46:537-542.
[12] Chen T L, Que P W, Zhang O, et al. Ultrasonic nondestructive testing accurate sizing and locating technique based on Time-of-Flight-Diffraction method. Russian Journal of Nondestructive Testing,2005.41(9): 594-601.
[13] Huang N E, Shen Z, Long S R, et al. The empirical mode decomposition and the hilbert spectrum for nonlinear and non-stationary time series analysis, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 1998(454): 903-995.
[14] Wang T, Zhang M C,Yu Q H,et al. Comparing the applications of EMD and EEMD on time–frequency analysis of seismic signal. Journal of Applied Geophysics, 2012(83): 29-34.
[15] Wu Z H, Huang N E. Ensemble empirical mode decomposition: a noise-assisted data analysis method. Advances in Adaptive Data Analysis 1 (1), 1-41.