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中文摘要：
针对地磁场背景中偶极子目标磁场大小难以获得的问题,提出了载体潜深辅助地磁定位方法,通过2次测量潜深及磁场梯度计算载体相对目标的垂向位置,但若想连续定位须载体不断垂向移动.为解决这一不足,提出利用目标磁矩信息实现水下地磁连续定位,由已知磁矩和磁场梯度组成关于位置的非线性方程组,解算载体位置.给出了连续定位算法的具体步骤.数值仿真结果表明,该方法能实现水下连续定位,且具有较高精度.
英文摘要：
Because magnetic dipole field is mixed with geomagnetic field,a geomagnetic localization method aided by vehicle draft depth was put forward to solve difficult acquirement of magnetic field magnitude,where the vertical position of vehicle relative to target can be calculated by two measurements of draft depth and magnetic gradient.The shortage of vehicle moving in vertical direction endlessly for continuous localization can be solved by a localization method using magnetic moment of the target,where the position of vehicle can be calculated by a nonlinear equation with position parameter composed of known magnetic moment and magnetic gradients.The concrete steps of continuous localization algorithm were given,and the numerical simulations prove the feasibility and higher precision of the localization algorithm.
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