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A TOA/AOA Underwater Acoustic Positioning System Based on the Equivalent Sound Speed

  • Mingzhen Xin (a1) (a2), Fanlin Yang (a1) (a2) (a3), Faxing Wang (a1), Bo Shi (a1) (a2) (a3), Kai Zhang (a1) (a2) (a3) and Hui Liu (a1)...


High-precision underwater positioning must eliminate the influence of refraction artefacts. Since a Time Of Arrival - Global Navigation Satellite System Intelligent Buoys (TOA-GIB) system does not measure incident beam angles, common refraction correction methods cannot be directly used for refraction artefacts. An Equivalent Sound Speed (ESS) iteration method is proposed and is based on the transformation relations between depth, the ESS gradient and the incident beam angle. On this basis, a TOA/AOA-GIB system without a real-time Sound Speed Profile (SSP) is proposed to estimate the target position and the ESS gradient as unknown parameters. The results from a simulation experiment show that the positioning accuracy of a TOA/AOA-GIB system is better than 0·07% of water depth when the accuracy of the incident beam angle is 0·1°.


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Alcocer, A., Oliveira, P. and Pascoal, A. (2006). Underwater acoustic positioning systems based onbuoys with GPS. Proceedings of the Eighth European Conference on Underwater Acoustics, 8th ECUA, Carvoeiro, Portugal, June 12–15.
Ballu, V., Ammann, J., Pot, O., Viron, O. D., Sasagawa, G. S. and Reverdin, G. (2009). A seafloor experiment to monitor vertical deformation at the Lucky Strike volcano, Mid-Atlantic Ridge. Journal of Geodesy, 83, 147159.
Desset, S., Damus, R., Morash, J. and Bechaz, C. (2003). Use of GIBs in AUVs for underwater archaeology. Sea Technology, 44(12), 22.
Geng, X. and Zielinski, A. (1999). Precise multibeam acoustic bathymetry. Marine Geodesy, 22, 157167.
Clarke, E. H., Lamplugh, M. and Kammerer, E. (2000). Integration of near-continuous sound speed profile information. Paper read at Canadian Hydrographic Conference, Proceedings CDROM, Victoria, Canada.
Ikuta, R., Tadokoro, K., Ando, M., Okuda, T., Sugimoto, S. and Takatani, K. (2008). A new GPS-acoustic method for measuring ocean floor crustal deformation: Application to the Nankai trough. Journal of Geophysical Research, 113(2), 229234.
Kammerer, E. (2000). New method for the removal of refraction artifacts in multibeam echosounder systems. PhD Thesis. University of New Brunswick, Canada.
Lu, X., Bian, S., Huang, M. and Zhai, G. (2012). An improved method for calculating average sound speed in constant gradient sound ray tracing technology. Geomatics & Information Science of Wuhan University, 37(5), 590593.
Nehorai, A. and Paldi, E. (1994). Acoustic vector sensor array processing. IEEE Transactions on Signal Processing, 42(9), 24812491.
Niess, V. (2005). Underwater acoustic positioning in ANTARES. Proceedings of the 29th International Cosmic Ray Conference, Pune, India, August 3–10.
Thomas, H. (1998). GIB buoys: an interface between space and depths of the oceans. Proceedings of the Workshop on Autonomous Underwater Vehicles, Cambridge, Massachusetts, USA, August 20–21. IEEE.
Tichavsky, P., Wong, K. T. and Zoltowski, M. D. (2001). Near-field/far-field azimuth and elevation angleestimation using a single vector hydrophone. IEEE Transactions on Signal Processing, 49(2), 24982510.
Vickery, K. (1998). Acoustic positioning systems. New concepts-the future. Workshop on Autonomous Underwater Vehicles, IEEE, 103110.
Xu, P., Ando, M. and Tadokoro, K. (2005). Precise, three-dimensional seafloor geodetic deformationmeasurements using difference techniques. Earth Planets Space 57, 795808.
Yang, F., Lu, X., Li, J., Han, L. and Zheng, Z. (2011). Precise positioning of underwater static objects without sound speed profile. Marine Geodesy, 34(2), 138151.
Chen, H. (2013). The estimation of angular misalignments for ultra-short baseline navigation systems. Part II: experimental results. Journal of Navigation, 66(5), 773787.
Zhang, K., Li, Y., Zhao, J. and Rizos, C. 2016. Underwater navigation based on real-time simultaneous sound speed profile correction. Marine Geodesy, 39(1), 98111.


A TOA/AOA Underwater Acoustic Positioning System Based on the Equivalent Sound Speed

  • Mingzhen Xin (a1) (a2), Fanlin Yang (a1) (a2) (a3), Faxing Wang (a1), Bo Shi (a1) (a2) (a3), Kai Zhang (a1) (a2) (a3) and Hui Liu (a1)...


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