短基线平面阵形双曲面定位系统的声线修正

Correction of located points in a hyperbolical locating system with a small plane array

摘要: 本文提出了一种适用于短基线平面阵形双曲面定位系统的声线修正方法,即用差分方程求迭代量(修正量)的一种迭代方法.用此方法所作的模拟计算表明,在相同的水文条件和阵形情况下,修正后的定位误差可由未经修正时的数米到数十米降至0.5米以下.此法原则上可用于其它各种阵形.

Abstract: In this paper a method used for correcting the coordinates of an underwater moving target obtained by a hyperbolic locating system with a small plane array when the sound velocity varies with depth is reported.This is an iteration method useing a series of differential difference equations to determine iterative values.The results calculated by this method show that under+he same condition,the location error is about several meters or tens of meters without the correction and less than 0.5m with the correction.The method can apply to various types of arrays