Title :
Robust self-localization solution for meeting room environments
Author :
Parviainen, Mikko
Author_Institution :
Dept. of Signal Process., Tampere Univ. of Technol., Tampere, Finland
Abstract :
This work presents a robust scheme for automatically discovering the coordinates of nodes in an acoustic sensor network. The system is based on utilizing measured Time Difference of Arrival (TDOA) information. The focus is on how to increase the robustness of the system in configurations which render the problem ill-posed. Truncated Singular Value Composition and Tikhonov Regularization are analyzed to cover an ill-posed problem with data produced by an acoustic sensor network. The initial experiments published in this work show that the robustness of such networks can be increased if either of the tested methods is used.
Keywords :
acoustic devices; acoustic signal processing; indoor communication; singular value decomposition; time-of-arrival estimation; wireless sensor networks; Tikhonov regularization; acoustic sensor network; meeting room environments; node coordinates; robust self localization solution; singular value composition; time difference of arrival; Acoustic measurements; Acoustic sensors; Actuators; Intelligent sensors; Lab-on-a-chip; Loudspeakers; Microphones; Robustness; Time difference of arrival; Time measurement;
Conference_Titel :
Consumer Electronics, 2009. ISCE '09. IEEE 13th International Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-2975-2
Electronic_ISBN :
978-1-4244-2976-9
DOI :
10.1109/ISCE.2009.5156957