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A Phase Deviation Based Split-spectrum Processing Algorithm for Ultrasonic Testing in Coarse Grained Materials

Liu Zhenqing, Ta Dean, Liu Xiao
(Institute of Acoustics, Tongji University, Shanghai 200092, P. R. China)
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Abstract

1. Introduction

2. Theory

3. Experiment

4. Conclusion

Acknowledgment

References

  1. V. L. Newhause, N. M. Bilgutay, ea al. Flaw-to-grain echo enhancement by split-spectrum
  2. Processing. Ultrasonics, 1982; 20(2): 59-68
  3. M. G. Gustafsson, T. Stepinski. Split spectrum algorithms rely on instantaments phase
  4. Information - a geometrical approach. IEEE trans. UFFC, 1993; 40(6): 659-665
  5. Q. Tian, N. M. Bilgutay. Statistical analysis of split spectrum processing for multiple target
  6. detection. IEEE trans. UFFC, 1998; 45(1): 251-256
  7. Z. Q. Liu. Signal enhancement of ultrasonic testing for coarse grained materials and its pattern
    Recognition. Ph.D. Thesis, Tongji University, Shanghai, China; September 1994.

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