Noise analysis of digital ultrasonic system and elimination of pulse noise

International Journal of Pressure Vessels and Piping

Volumn 75, Issue 12, 1998, Pages 887-890

  Chen, Jianzhong ^b   Shi, Yaowu ^a   Shi, Shu ^a  

^a BEIJING UNIVERSITY OF TECHNOLOGY   (China)

^b NONE

Author keywords

Digital signal processing; Digital ultrasonic system; Noise; Pulse noise; Ultrasonic testing

Indexed keywords

ALGORITHMS; DIGITAL SIGNAL PROCESSING; SPECTRUM ANALYSIS; ULTRASONIC TESTING;

DIGITAL ULTRASONIC SYSTEMS; PULSE NOISE;

WELDS;

EID: 0032180585     PISSN: 03080161     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0308-0161(98)00091-X     Document Type: Article

References (10)

1. Sinclair A. An analysis of ultrasonic frequency response for flaw detection: a technique review. Materials Evaluation 1989;43(6):870-883.
2. Tang W, Shi YW. Detection and classification of welding defects in friction-welded joints using ultrasonic NDT methods. Insight 1997;30(2):88-92.
3. Newhouse VL, Bilgutary NM, et al. Flaw-to grain echo enhancement by split-spectrum processing. Ultrasonics 1982;20(3):59-68.
4. Ericsson L, Stepinski T. Cut spectrum processing: a novel signal processing algorithm for ultrasonic flaw detection. NDT&E International 1992;25(2):59-64.
5. Abbate A, et al. Signal detection and noise suppression using a wavelet transform signal processor: application to ultrasonic flaw detection. IEEE Transactions on UFFC 1997;44(1):14-26.
6. Liu Z, Yang C, Yao J. Flaw-to grain echo enhancement in coarse materials by split-spectrum processing (in Chinese). Nondestructive Testing 1995;17(5):121-123.
7. Baligand B, Grozellier M, Romy D. Improvement in ultrasonic examination of austenitic steels. Materials Evaluation 1986;44(4):577-581.
8. Fitting DW, Adler L. Ultrasonic spectral analysis for nondestructive evaluation. New York: Plenum Press, 1981.
9. Neal SP, Thompson DO. The measurement and analysis of acoustic noise as a random variable. In: Thompson DO, Chimenti DE, editors. Review of progress in quantitative nondestructive evaluation, vol. 9A. New York: Plenum Press, 1990: 625-32.
10. Zuo J. Elimination of pulse noise from ultrasonic testing signals by median filtering technique (in Chinese). Nondestructive Testing 1995;20(2):78-79.