TY - GEN
T1 - Underwater localization and tracking based on semi-definite programming
AU - Wang, Dexin
AU - Yang, Liuqing
AU - Cheng, Xiang
PY - 2013
Y1 - 2013
N2 - In underwater localization, buoyed anchors are preferable because of their low cost and the convenience to deploy, calibrate and reuse. However, this setup imposes extra difficulty to the localization of submerged targets since they are outside of the convex hull formed by the anchors. In this paper, we propose a semi-definite programming (SDP) based localization approach that is augmented by measurements obtained via onboard pressure sensors. Compared with the widely-adopted linearized least squares solution, simulations show our augmented SDP offers improved accuracy for point localization and faster convergence for tracking, under the same system configuration and environmental conditions, especially at low signal to noise ratio (SNR).
AB - In underwater localization, buoyed anchors are preferable because of their low cost and the convenience to deploy, calibrate and reuse. However, this setup imposes extra difficulty to the localization of submerged targets since they are outside of the convex hull formed by the anchors. In this paper, we propose a semi-definite programming (SDP) based localization approach that is augmented by measurements obtained via onboard pressure sensors. Compared with the widely-adopted linearized least squares solution, simulations show our augmented SDP offers improved accuracy for point localization and faster convergence for tracking, under the same system configuration and environmental conditions, especially at low signal to noise ratio (SNR).
KW - Buoyed anchors
KW - Convex hull
KW - Semi-definite programming
KW - Underwater localization
UR - http://www.scopus.com/inward/record.url?scp=84892509261&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84892509261&partnerID=8YFLogxK
U2 - 10.1109/ICSPCC.2013.6664147
DO - 10.1109/ICSPCC.2013.6664147
M3 - Conference contribution
AN - SCOPUS:84892509261
SN - 9781479910274
T3 - 2013 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2013
BT - 2013 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2013
T2 - 2013 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2013
Y2 - 5 August 2013 through 8 August 2013
ER -