For rotating machineries, rub-impact between the surfaces of the rotor and the stator during
the rotation is a common and severe fault. The rub-impact fault will lead to a frequency-…

Signal decomposition has drawn growing interest in various applications these days. Some
recent decomposition methods, like the variational mode decomposition (VMD) and the …

In some applications, it is necessary to analyze multi-component non-stationary signals whose
components severely overlap in the time-frequency (TF) domain. Separating those signal …

Variational mode decomposition (VMD), a recently introduced method for adaptive data
analysis, has aroused much attention in various fields. However, the VMD is formulated based …

To analyze the valuable frequency component for time-varying frequency-modulated (FM)
signals, component extraction is necessary in most applications. Considering the advantage …

Wheel flat, as a common defect of railway vehicles, can cause large impact forces on both
the vehicle and infrastructure components and thus seriously hinder the vehicle running …

Doppler frequency can reflect the dynamic properties of the radar target and thus provides
an effective approach to analyze the target signatures. In this paper, a novel method is …

This report describes a method for patterning multiple types of adherent cells on the same
substrate by electrochemical desorption of self-assembled monolayers (SAMs) in localized …

… Jing-Yi Zhu, Shiqian Chen and Qi Xue contributed to the experimental planning, experimental
measurements, data analysis and manuscript preparation. Shiqian Chen and Lai Xu …

In this paper, we consider the decomposition problem for multi-component chirp signals (MCCSs).
We develop a general model to characterize MCCSs, where instantaneous …