【摘要】 超短基线定位方法是一种水声定位技术。其优点是设备体积小,便于安装、操作;其缺点是定位精度不够高。因此,超短基线定位系统在水下探测过程中的应用受到诸多限制。如何提高定位精度是该系统面临的主要问题。本文分别对超短基线定位精度与误差的产生原因进行了分析,并在此基础上对如何提高定位精度和如何减小定位误差提出了办法。最后对提高精度和减小误差的方法分别进行了计算机仿真,仿真结果证明,精度得到提高,误差被缩小。更多还原

【Abstract】 Ultra-short baseline system(USBL) is a kind of acoustic positioning technology.Its strongpoint is that it is easy to install and operate while its disadvantage is the poor positioning precision.As a result,the application of USBL is limited.So the key to make USBL into practice is to improve the positioning precision.In this article,we analyzed the positioning precision and the causation of positioning error.And then,we present two improved methods.At last,we made simulation for each method.The simulation results show that the positioning precision of the improved USBL is increased and the positioning error of the improved USBL is reduced by using these methods.更多还原