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Proceedings Paper

Identification of source location by using compressive approach
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Paper Abstract

In this paper, a new approach to identify the source location is proposed by exploiting the compressive sensing theory, which indicates that sparse or compressible signals can be recovered using just a few measurement. A square grid configuration plate with some piezoelectric actuator and sensor is used to verify the proposed approach. The grid is used to sweep across the plate to identify the location of source. Piezoelectric actuator placed on the plate is used to excite waves, and the signals of waves received at some sensors. The sensor locations are known, however, the source location need not be known. The candidate source locations are suitably chosen grid on the surface of plate. Sensing matrix which is related to the locations of source and sensor can be calculated at each sensor. Then, the proposed approach used the received signal strengths to locate the source by minimizing the ℓ1-norm of the sparse matrix in the discrete spatial domain based on the concept of compressive sensing (CS). The simulation results show the proposed method achieves a high level of localization accuracy.

Paper Details

Date Published: 19 April 2013
PDF: 7 pages
Proc. SPIE 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, 86922M (19 April 2013); doi: 10.1117/12.2009648
Show Author Affiliations
Wentao Wang, Harbin Institute of Technology (China)
Yuequan Bao, Harbin Institute of Technology (China)
Hui Li, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 8692:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013
Jerome Peter Lynch; Chung-Bang Yun; Kon-Well Wang, Editor(s)

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