25 August 2009 Application of harmonic wavelet to filtering of rockbolt detecting signal
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Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 73753W (2009) https://doi.org/10.1117/12.839271
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China
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.
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Yucheng Zhao, Yucheng Zhao, Hongyan Liu, Hongyan Liu, Jiyan Wang, Jiyan Wang, Xiexing Miao, Xiexing Miao, } "Application of harmonic wavelet to filtering of rockbolt detecting signal", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73753W (25 August 2009); doi: 10.1117/12.839271; https://doi.org/10.1117/12.839271
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