CUI Xu-tao(崔旭涛)1,2 , YANG Ri-jie（杨日杰）2 , HE You（何友）2
(1. Scientific Department of Naval Aeronautical Engineering Academy, Yantai 264001, China;2. Information Fusion Institute of Naval Aeronautical Engineering Academy, Yantai 264001, China)
Abstract：Combined with naval vessel practical antisubmarine equipment of towed linear array sonar, a mathematical model of naval vessel localization for submarine based on bearing measurement was built, and localization algorithm was given to solve submarine movement parameters. Localizaiton errors were analyzed. Based on localization model and algorithm, simulations were done to study the effect of factors such as initial distance between submarine and the naval vessel, submarine initial bearing angle measured by the naval vessel and submarine course on localization performance, and then simulation results were given and analyzed. The results have practical value to instruct real antisubmarine. Simulation results show that different target movement situations have great influence on sonar detection and localization performance, so the reasonable choice of sonar position and detection bearing according to the target movement situation can improve sonar detection and localization performance to some degree.
Key words：naval vessel; bearing measurement; submarine localization; error analysis; localization algorithm
CLD number： E925.63 Document code： A
Article ID： 1674-8042(2012)01-0010-04 doi： 10.3969/j.issn.1674-8042.2012.01.002
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