Advances in Wavelet Theory and Their Applications in Engineering, Physics and Technology 2012
DOI: 10.5772/36166
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Utilising the Wavelet Transform in Condition-Based Maintenance: A Review with Applications

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Cited by 14 publications
(20 citation statements)
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“…Another type of wavelet analysis called complex wavelet transform and is represented by the dualtree complex wavelet transform. It is an alternate, complex-valued extension and enhancement to the standard DWT, and has important properties that provides multiresolution, sparse representation and the capability to reduce the aliasing effects, which is caused by the overlap of opposing-frequency pass-bands of the wavelet filters [39], [40]. Two parallel DWTs with different low-pass and high-pass filters in each scale are used for decomposition and reconstruction in the dual-tree implementation.…”
Section: Discrete Wavelet Transform (Dwt)mentioning
confidence: 99%
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“…Another type of wavelet analysis called complex wavelet transform and is represented by the dualtree complex wavelet transform. It is an alternate, complex-valued extension and enhancement to the standard DWT, and has important properties that provides multiresolution, sparse representation and the capability to reduce the aliasing effects, which is caused by the overlap of opposing-frequency pass-bands of the wavelet filters [39], [40]. Two parallel DWTs with different low-pass and high-pass filters in each scale are used for decomposition and reconstruction in the dual-tree implementation.…”
Section: Discrete Wavelet Transform (Dwt)mentioning
confidence: 99%
“…The N value also identifies the number of filter coefficients in each wavelet order; for instance, the wavelet dbN and symN have 2N coefficients in each order. Generally, the use of different wavelets to analyze the same signal would lead to different results, and to date no generic theoretical procedure has been published describing on how to select the optimum wavelet family [39], [45], [ 46].…”
Section: Selection the Optimum Mother Waveletmentioning
confidence: 99%
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“…Outline of the approach PHM approaches derive useful features directly from routinely monitored operational data. As with change of time wear in machinery increases, phenomena like excessive temperature, vibration or acoustic emission are observed [7], [14]. Prognostics approaches assume that the health indicators (features) are constant until a fault occurs in a component or system.…”
Section: Cumulative Features Extraction Procedures Based On Trigomentioning
confidence: 99%
“…The particular work also covers general applications in machinery diagnostics in reference to wavelets. Loutas and Kostopoulos (2012) provide a more up to date list of existing applications of wavelets in CBM of gearboxes, bearings and electric motors.…”
Section: Fig 28mentioning
confidence: 99%