TY - GEN
T1 - Underwater localization with time-synchronization and propagation speed uncertainties
AU - Diamant, Roee
AU - Lampe, Lutz
PY - 2011
Y1 - 2011
N2 - Underwater localization is a key element in most underwater communication applications. Since GPS signals highly attenuate in water, accurate ranging based techniques for localization need to be developed. In this paper we describe a sequential algorithm for time-synchronization and localization in the underwater acoustic channel. We consider the realistic case where nodes are not time-synchronized and the sound speed in water is unknown, and formalize the localization problem as a sequence of two linear estimation problems. Simulation results demonstrate that our algorithm compensates for time-synchronization and signal propagation speed uncertainties, and achieves good localization accuracy using only two anchor nodes.
AB - Underwater localization is a key element in most underwater communication applications. Since GPS signals highly attenuate in water, accurate ranging based techniques for localization need to be developed. In this paper we describe a sequential algorithm for time-synchronization and localization in the underwater acoustic channel. We consider the realistic case where nodes are not time-synchronized and the sound speed in water is unknown, and formalize the localization problem as a sequence of two linear estimation problems. Simulation results demonstrate that our algorithm compensates for time-synchronization and signal propagation speed uncertainties, and achieves good localization accuracy using only two anchor nodes.
KW - Underwater acoustic localization (UWAL)
KW - propagation speed uncertainties
KW - time synchronization and localization
UR - http://www.scopus.com/inward/record.url?scp=80051873350&partnerID=8YFLogxK
U2 - 10.1109/WPNC.2011.5961023
DO - 10.1109/WPNC.2011.5961023
M3 - Conference contribution
AN - SCOPUS:80051873350
SN - 9781457704505
T3 - Proceedings of the 8th Workshop on Positioning Navigation and Communication 2011, WPNC 2011
SP - 100
EP - 105
BT - Proceedings of the 8th Workshop on Positioning Navigation and Communication 2011, WPNC 2011
T2 - 8th Workshop on Positioning Navigation and Communication 2011, WPNC 2011
Y2 - 7 April 2011 through 8 April 2011
ER -