Uniform analytic construction of wavelet analysis filters based on sine and cosine trigonometric functions

2001 ◽  
Vol 22 (5) ◽  
pp. 569-585
Author(s):  
Li Jian-ping ◽  
Tang Yuan-yan ◽  
Yan Zhong-hong ◽  
Zhang Wan-ping
1997 ◽  
Vol 36 (04/05) ◽  
pp. 356-359 ◽  
Author(s):  
M. Sekine ◽  
M. Ogawa ◽  
T. Togawa ◽  
Y. Fukui ◽  
T. Tamura

Abstract:In this study we have attempted to classify the acceleration signal, while walking both at horizontal level, and upstairs and downstairs, using wavelet analysis. The acceleration signal close to the body’s center of gravity was measured while the subjects walked in a corridor and up and down a stairway. The data for four steps were analyzed and the Daubecies 3 wavelet transform was applied to the sequential data. The variables to be discriminated were the waveforms related to levels -4 and -5. The sum of the square values at each step was compared at levels -4 and -5. Downstairs walking could be discriminated from other types of walking, showing the largest value for level -5. Walking at horizontal level was compared with upstairs walking for level -4. It was possible to discriminate the continuous dynamic responses to walking by the wavelet transform.


ICCTP 2011 ◽  
2011 ◽  
Author(s):  
Xing-jian Zhang ◽  
Xiao-hua Zhao ◽  
Jian Rong ◽  
Shi-li Xu

2020 ◽  
pp. 43-50
Author(s):  
A.S. Komshin ◽  
K.G. Potapov ◽  
V.I. Pronyakin ◽  
A.B. Syritskii

The paper presents an alternative approach to metrological support and assessment of the technical condition of rolling bearings in operation. The analysis of existing approaches, including methods of vibration diagnostics, envelope analysis, wavelet analysis, etc. Considers the possibility of applying a phase-chronometric method for support on the basis of neurodiagnostics bearing life cycle on the basis of the unified format of measurement information. The possibility of diagnosing a rolling bearing when analyzing measurement information from the shaft and separator was evaluated.


Human Ecology ◽  
2017 ◽  
pp. 33-37 ◽  
Author(s):  
O. N. Ragozin ◽  
V. I. Korchin ◽  
E. Yu. Shalamova ◽  
E. R. Ragozina

2012 ◽  
Vol 182 (9) ◽  
pp. 905-939 ◽  
Author(s):  
A.N. Pavlov ◽  
A.E. Hramov ◽  
A.A. Koronovskii ◽  
Evgenija Yu. Sitnikova ◽  
Valerii A. Makarov ◽  
...  
Keyword(s):  

1997 ◽  
Vol 167 (10) ◽  
pp. 1112
Author(s):  
Yulii A. Danilov
Keyword(s):  

2005 ◽  
Vol 11 (5-6) ◽  
pp. 22-29
Author(s):  
O.V. Lazorenko ◽  
◽  
S.V. Lazorenko ◽  
L.F. Chernogor ◽  
◽  
...  
Keyword(s):  

2018 ◽  
Author(s):  
Munzarin Morshed ◽  
Syed Imtiaz ◽  
Mohammad Aziz Rahman

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