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Compression methods for mechanical vibration signals: Application to the plane engines

Abstract : A novel approach for the compression of mechanical vibration signals is presented in this paper. The method relies on a simple and flexible decomposition into a large number of subbands, implemented by an orthogonal transform. Compression is achieved by a uniform adaptive quantization of each subband. The method is tested on a large number of real vibration signals issued by plane engines. High compression ratios can be achieved, while keeping a good quality of the reconstructed signal. It is also shown that compression has little impact on the detection of some commonly encountered defects of the plane engine.
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https://hal-supelec.archives-ouvertes.fr/hal-00871742
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Submitted on : Thursday, October 10, 2013 - 12:02:37 PM
Last modification on : Tuesday, June 15, 2021 - 4:23:49 PM
Long-term archiving on: : Saturday, January 11, 2014 - 4:20:11 AM

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Marius Oltean, José Picheral, Elisabeth Lahalle, Hani Hamdan, Julien Griffaton. Compression methods for mechanical vibration signals: Application to the plane engines. Mechanical Systems and Signal Processing, Elsevier, 2013, 41 (1-2), pp.313-327. ⟨10.1016/j.ymssp.2013.07.005⟩. ⟨hal-00871742⟩

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