Fusion Method and Application of Several Source Vibration Fault Signal Spatio-Temporal Multi-Correlation

Fault Detection Method on a Compressor Rotor Using the Phase Variation of the Vibration Signal

The aim of this work is the application of the phase variation in vibration signal for fault detection on rotating machines. The vibration signal from the machine is modulated in amplitude and phase around a carrier frequency. The modulating signal in phase is determined after the Hilbert transform and is used, with the Fast Fourier Transform, to extract the harmonics spectrum in phase. This me...

Recognition of Visual Events using Spatio-Temporal Information of the Video Signal

Recognition of visual events as a video analysis task has become popular in machine learning community. While the traditional approaches for detection of video events have been used for a long time, the recently evolved deep learning based methods have revolutionized this area. They have enabled event recognition systems to achieve detection rates which were not reachable by traditional approac...

Multi-antenna spectrum sensing by exploiting spatio-temporal correlation

In this paper, we propose a novel mechanism for spectrum sensing that leads us to exploit the spatio-temporal correlation present in the received signal at a multi-antenna receiver. For the proposed mechanism, we formulate the spectrum sensing scheme by adopting the generalized likelihood ratio test (GLRT). However, the GLRT degenerates in the case of limited sample support. To circumvent this ...

Convolutive Underdetermined Source Separation through Weighted Interleaved ICA and Spatio-temporal Source Correlation

This paper presents a novel method for underdetermined acoustic source separation of convolutive mixtures. Multiple complexvalued Independent Component Analysis adaptations jointly estimate the mixing matrix and the temporal activities of multiple sources in each frequency. A structure based on a recursive temporal weighting of the gradient enforces each ICA adaptation to estimate mixing parame...

A Practical Method for Multi-source Deblending Using Spatio-temporal Compressive Sensing