Open Access

Denoising Using Blind Source Separation for Pyroelectric Sensors

EURASIP Journal on Advances in Signal Processing20012001:456183

DOI: 10.1155/S1110865701000142

Received: 5 December 1999

Published: 1 March 2001

Abstract

This paper deals with a process of denoising based on a Blind Source Separation (BSS) method. This technique is inserted in an experimental device of nondestructive testing. Its excitation is a laser beam and its detectors are pyroelectric sensors. The latter are sensitive to the temperature. As they are also piezoelectric, they are particularly sensitive to the environmental noise. Therefore, it is necessary to denoise them. With this aim in view, a technique of blind source separation is implemented. One source corresponds to the incidental beam and the other sources are various noise. A judicious experimental device was designed in the laboratory. It fits to the requirements of the BSS technique, and it allows indeed a restoration of the incident signal.

Keywords

blind source separation denoising pyroelectric sensor multi-sensor laser beam humidity profile

Authors’ Affiliations

(1)
Faculté des Sciences, LAM

Copyright

© Huez et al. 2001