TY - GEN
T1 - NLOS identification using a hybrid ToA-signal strength algorithm for underwater acoustic localization
AU - Diamant, Roee
AU - Tan, Hwee Pink
AU - Lampe, Lutz
PY - 2010
Y1 - 2010
N2 - The existence of obstacles in harbors or near shore environments leads to Non-Line-Of-Sight (NLOS) links between two underwater acoustic communication (UWAC) nodes. That is, only echoes of the transmitted signal arrive at the receiving node. Mistaking the first (strong) echo as a Line-Of-sight (LOS) measurement and using it for ranging causes significant degradation of the accuracy level of UWAC-based localization. In this paper, we propose a solution for the NLOS identification problem in underwater acoustic localization. Results from both extensive simulations and sea trial experiments confirm our approach and demonstrate a high detection rate of NLOS measurements.
AB - The existence of obstacles in harbors or near shore environments leads to Non-Line-Of-Sight (NLOS) links between two underwater acoustic communication (UWAC) nodes. That is, only echoes of the transmitted signal arrive at the receiving node. Mistaking the first (strong) echo as a Line-Of-sight (LOS) measurement and using it for ranging causes significant degradation of the accuracy level of UWAC-based localization. In this paper, we propose a solution for the NLOS identification problem in underwater acoustic localization. Results from both extensive simulations and sea trial experiments confirm our approach and demonstrate a high detection rate of NLOS measurements.
UR - http://www.scopus.com/inward/record.url?scp=78651329999&partnerID=8YFLogxK
U2 - 10.1109/OCEANS.2010.5664483
DO - 10.1109/OCEANS.2010.5664483
M3 - Conference contribution
AN - SCOPUS:78651329999
SN - 9781424443321
T3 - MTS/IEEE Seattle, OCEANS 2010
BT - MTS/IEEE Seattle, OCEANS 2010
T2 - MTS/IEEE Seattle, OCEANS 2010
Y2 - 20 September 2010 through 23 September 2010
ER -