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Hai Qiu

Researcher at University of Cincinnati

Publications -  1
Citations -  1104

Hai Qiu is an academic researcher from University of Cincinnati. The author has contributed to research in topics: Harmonic wavelet transform & Second-generation wavelet transform. The author has an hindex of 1, co-authored 1 publications receiving 835 citations.

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Wavelet filter-based weak signature detection method and its application on rolling element bearing prognostics

TL;DR: In this paper, the performance of wavelet decomposition-based de-noising and wavelet filter based denoising methods are compared based on signals from mechanical defects, and the comparison result reveals that wavelet filters are more suitable and reliable to detect a weak signature of mechanical impulse-like defect signals, whereas the wavelet transform has a better performance on smooth signal detection.