Perturbation-based prediction of vibration phase shift along fluid-conveying pipes due to Coriolis forces, nonuniformity, and nonlinearity
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DOI: 10.1007/s11071-019-04934-6
Abstract: Flexural vibrations of a fluid-conveying pipe are investigated theoretically, with special consideration to the spatial shift in vibration phase caused by fluid flow and various imperfections. The latter includes small nonuniformity or asymmetry in stiffness,… read more here.
Keywords: fluid conveying; shift; vibration phase; phase shift ... See more keywords
Noise-Robust Vibration Phase Compensation for Satellite ISAL Imaging by Frequency Descent Minimum Entropy Optimization
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DOI: 10.1109/tgrs.2022.3204077
Abstract: Inverse synthetic aperture ladar (ISAL) can perform high-resolution imaging for satellites. However, due to the short wavelength of the laser, satellite microvibration will introduce space-variant vibration phase error (SVVPE) and space-invariant vibration phase error (SIVVPE)… read more here.
Keywords: vibration phase; minimum entropy; phase; vibration ... See more keywords