基于长基线水声定位系统水下定位技术初步应用研究

Applied research of long baseline acoustic positioning system based on underwater positioning technique

长基线定位系统(Long Baseline),简称LBL,是一种高精度深水水下定位系统。文章在介绍了国内外LBL发展现状基础上,通过松花湖LBL水下定位系统试验,介绍了其定位理论和方法,解决了50 m水深海底信标布放、固定及回收问题,探索了海底应答器相对校准(基线校准)、绝对校准方法,确定了定位标的跟踪定位方式,形成了相对完整的LBL水下定位流程和方法体系,得到了高精度水下定位数据,为实际工程应用提供了真实的理论基础。

Long baseline positioning system, referred to as LBL,is a kind of high precise deep underwater posi-tioning system. Based on analyzing the development situations of LBL, the positioning theory and method were stud-ied systematically according to the experiment in Songhua lake, and the problems of seabed beacons laying, fixationand recycle in 50 m water depth were solved in this paper. Then relative calibration（baseline calibration） methodand absolute calibration（box-in） were explored, and the tracking and positioning mode of localizer was determined.An integrated system and a positioning process of LBL were formed, and the high precise underwater positioning da-ta were obtained.