一种新的磁偶极子反演定位方法研究

针对目前报导的磁定位算法存在多解、计算速度慢等问题,本文根据水下目标磁场的远场分布特征,提出了一种新的磁偶极子反演定位方法,并建立了目标磁场分布的定位模型,同时提出了双标量磁探仪探测定位方法,完成了水下目标磁异常定位仿真计算.仿真结果表明,定位误差在30 m以内的概率达到了96 ％,定位误差在60 m以内的概率达到了100％,当目标处于不同方位时的定位结果均满足要求.该方法克服了现有算法的缺点,定位结果更为准确,可以满足水下目标准确定位的要求,具有较强的实际应用价值.

A New Method of Localization Based on Magnetic Dipole Theory

Magnetic localization algorithm reported has multiple solutions and slow computing speed prob- lem. This article proposed a new method for object localization which achieved better localization effect than original method. According to the far field distribution characteristics of underwater target magnetic field, we set the target magnetic field distribution model. Two-scalar magnetic detector detecting and posi- tioning method was proposed and the simulation of target magnetic anomaly location under water was fin- ished. The simulation results show that the positioning error probability reached 96% in 30 m and the po- sitioning error probability reached 100% in 60 m. The theory and method of the positioning can meet the requirement of accurate positioning of underwater targets. The results have an important referenced value in the actual application of the localization projects.