Three-Dimensional Passive Source Localisation using the Flank Array of an Autonomous Underwater Vehicle in Shallow Water

Defence Science Journal

Woojae Seong²  Keunhwa Lee²  Zhiping Huang¹  Dexin Zhao¹ 

[1] National University of Defence Technology, Changsha;Seoul National University, Seoul

关键词: Passive source localisation;    flank array;    autonomous underwater vehicle;    matched-field processing;    inter-position processing;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

Researchers have become interested in autonomous underwater vehicles equipped with various kinds of sonar systems that can perform many of underwater tasks, which is encouraged by the potential benefits of cost reduction and flexible deployment. This paper proposes an approach to three-dimensional passive source localisation with the flank array of an autonomous underwater vehicle in shallow water. The approach is developed based on matched-field processing for the likelihood of passive source localisation in the shallow water environment. Inter-position processing is also used for the improved localisation performance and the enhanced stability of the estimation process against the lack of spatial gain due to the small physical size of the flank array. The proposed approach is presented and validated through simulation and experimental data. The results illustrate the localisation performance at different signal-to-noise ratios and demonstrate the build up over time of the positional parameters of the estimated source as the autonomous underwater vehicle cruises at a low speed along a straight line at a constant depth. Defence Science Journal, 2013, 63(3), pp.323-330 ,  DOI:http://dx.doi.org/10.14429/dsj. 63.3011

【 授权许可】

Unknown