ICASSP 2006 - May 15-19, 2006 - Toulouse, France

Technical Program

Paper Detail

Paper:SAM-P6.12
Session:Applications of Multichannel Signal Processing
Time:Friday, May 19, 16:30 - 18:30
Presentation: Poster
Topic: Sensor Array and Multichannel Signal Processing: Signal detection and estimation
Title: Source Detection and Separation in Power Plant Process Monitoring: Application of the Bootstrap
Authors: Rostom Aouada, Supélec, France; Saïd Aouada, Darmstadt University of Technology, Germany; Guy d'URSO, Electricité de France, France; Abdelhak Zoubir, Darmstadt University of Technology, Germany
Abstract: We consider source enumeration and identification in the context of monitoring the cooling circuit of a pressurized-water-reactor (PWR) nuclear plant. We employ a linear instantaneous-mixture to describe the system. We use the Gerschgorin radii of the transformed covariance matrix of the data to detect the number of sources. In particular, we illustrate the advantage of employing the bootstrap in a scenario where no or little a priori knowledge is available on the statistical properties of the measured data. A specific denoising procedure is also applied to the data to alleviate the effect of small variations of the noise power over the sensors, and allow a more accurate source separation. The results show the potential of both Gerschgorin-based detection and the bootstrap in practice.



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