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Proceedings Paper

Application of harmonic wavelet to filtering of rockbolt detecting signal
Author(s): Yucheng Zhao; Hongyan Liu; Jiyan Wang; Xiexing Miao
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Paper Abstract

Harmonic wavelet had explicit functional expression, flexible time-frequency division, simple transforming algorithm and a finer frequency refinement function than the others wavelet. In this paper based on frequency distributing characteristic of nondestructive testing signal from rockbolt supporting system, the discrete harmonic wavelet transforming theory was used to get rid of the lower and higher frequency signal from the initial signal. Meanwhile, the reconstruction algorithm of harmonic wavelet was brought forward to gain the signal without the unnecessary bandwidth signals. Finally, a numerical signal and real signal which can demonstrate superiority of harmonic wavelet in filtering are presented, and the transforming result shows that it would make the system run more precise and stably in the detecting to the quality of rockbolt supporting system.

Paper Details

Date Published: 25 August 2009
PDF: 5 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73753W (25 August 2009); doi: 10.1117/12.839271
Show Author Affiliations
Yucheng Zhao, China Univ. of Mining and Technology (China)
Hongyan Liu, China Univ. of Mining and Technology (China)
Jiyan Wang, China Univ. of Mining and Technology (China)
Xiexing Miao, China Univ. of Mining and Technology (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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