Fengxing Zhou

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As one of the key issues of users' mobility management in next generation of heterogeneous wireless network, vertical handover has received extensive attention in academic and industrial circles. With the development of mobile terminals, mobile users can simultaneously run different types of applications, which have different requirements on network(More)
When bearing faults occur in induction motor fed with variable frequency power, some fault related characteristic components appear in the stator current. But these components are often submerged by the strong fundamental component of the power supply during the dynamic speed regulation process. In this paper, an approach based on generalized demodulation(More)
The impulse signal is contained in the fault signals of some pivotal components such as gears and axletrees. Extracting weensy impact information is an important method to diagnose equipment. A mathematical model on the technology of resonant demodulation is put forward in this paper. The model provides the theoretical basis on how to use the technology to(More)
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