圆走航水下静态目标定位斜距值优化算法

针对传统方法计算水下两点之间斜距值不准确的问题,基于声线跟踪算法,提出了以水平距离为约束条件的斜距值优化算法。首先介绍了圆走航单点定位原理,然后给出了新方法的计算原理以及具体的计算步骤,最后设计了仿真实验,将新方法与传统算法进行对比。结果表明,初始入射角在5°以内,传统迭代算法准确度更高,其他入射角范围,新方法准确度更高,表明新方法的适用性更强。

Accurate calculation method of slant range for underwater static target positioning taking horizontal distance constraint into account

This paper focus on the problem of traditional method with a low accuracy in calculating the slant range between two underwater points.Based on the ray-tracking algorithm,this paper proposes a method to calculate the slant range with horizontal distance as constraint.Firstly,the principle of single point positioning for survey ship sailing circle is introduced.Then,the principle of the new method is introduced,and the specific calculation steps are given.Finally,a simulation experiment is designed to compare the new method with the traditional iterative algorithm.The results show that the accuracy of the traditional iterative algorithm is higher when the initial incident angle is less than 5 ° and the new method is more accurate in other regions,which indicates that the new method is more applicable.