界面反射对超短基线水声定位系统的影响——“跳象限”现象分析与克服

Influence of boundaries on ultrashort——base line underwater acoustic tracking system

本文通过界面反射对超短基线水声定位系统的影响进行理论分析和计算机仿真,指出了超短基线水声定位系统中存在“跳象限”现象的物理原因,给出了产生“跳象限”现象的必要条件,并提出了防止“跳象限”的具体措施和软件纠正方法.经湖上试验验证,本文进行的理论分析与实验结果相符,所提出的防止“跳象限”方法切实可行.

A special tracking error of the ultrashort - base line underwater acoustic tracking system called 'quadrant hopping' is caused by the influence of boundaries. Both analysis and computer simulation of this phenomenon are presented. The necessary conditions under which the 'quadrant hopping' error could be observed are described and the method for overcoming the error, especially by software is also shown. The experiments made in a lake show that the theory and methods overcoming the 'quadrant hopping' error are effective.