水下目标卫星导航定位修正技术研究

提出了一种基于小型拖曳浮体进行水下目标卫星导航的原理模型,给出了模型的基本体系架构.为了从水面导航定位结果推算水下目标高精度位置信息,推导了两种定位修正算法,并基于数据融合技术提高了水下目标卫星定位修正的精度.试验结果表明,采用该技术可以较好地满足水下导航的精度要求.

Correction Technology for Underwater Object Navigation Using GNSS Buoy

A method to improve the underwater object navigation accuracy for ROV is put forward.Unlike traditional ocean GPS position technologies,tug buoy is used.With the benefit of it,researchers needn't prepare the buoy array before ROV is to work,also the ROV can move faster and even much more far away.In this case,it is important to correct the distance between the buoy and the underwater ROV.Two routes are used to get it.And how to use IMU to get the distance is discussed in detail,the data fusing method which is used to improve the accuracy.An experiment system is given to examine this correction technology.